OpenSimulator - User contributions [en]

Freeswitch Module

2010-05-13T08:22:00Z

Robsmart: /* Errors & Solutions */

__NOTOC__
{{Template:Quicklinks}}
 

The FreeSwitch module enables voice in opensim with no changes required to the SL or Hippo clients (must be over 1.22 for SL and 0.5 for Hippo)

== FreeSwitch Install ==

Follow the instructions [http://wiki.freeswitch.org/wiki/Installation_Guide here] on how to compile from source. We need to enable two specific modules.
'''
please ensure you compile from the freeswitch trunk for now until we can post a minimum version number (there are known issues with older versions)'''

When you get to the part in the instructions where it says "'''Edit modules.conf so that it will build the modules you desire.'''" edit the modules.conf file and uncomment out the entries for xml_curl and the siren14 codec

codecs/mod_siren
and
xml_int/mod_xml_curl

* You can also use this [http://madhawa.com/?p=10 guide] for setting it up in a quick way -- [[User:Fly-man-|Fly-man-]]

==FreeSwitch Config==

Install and compile Freeswitch, making sure you enable the xml_curl module and also the siren14 codec.

=== enable mod_xml_curl ===

Next, do not forget to activate mod_xml_curl in /usr/local/freeswitch/conf/autoload_configs/modules.conf.xml. mod_xml_curl is disabled by default on fresh install.

uncomment the lines...
<load module="mod_xml_curl"/>

and

<load module="mod_siren"/>

=== configure mod_xml_curl ===

the xml_curl module configuration should point to an opensim region that has the freeswitch voice module enabled (voice also needs to be enabled in the estate setting for all regions)

example xml_curl.conf.xml found in /usr/local/freeswitch/conf/autoload_configs

<configuration name="xml_curl.conf" description="cURL XML Gateway">
<bindings>
<binding name="example">
<param name="gateway-url" value="http://youropensimregion:9000/api/freeswitch-config" bindings="directory"/>
<param name="gateway-credentials" value="freeswitch:password"/>
<param name="disable-100-continue" value="true"/>
</binding>
<binding name="local">
<param name="gateway-url" value="http://youropensimregion:9000/api/freeswitch-config" bindings="dialplan"/>
<param name="gateway-credentials" value="freeswitch:password"/>
<param name="disable-100-continue" value="true"/>
</binding>
</bindings>
</configuration>

The /usr/local/freeswitch/conf/vars.xml requires modification to enable the siren14 codec

search within vars.xml for the global_codec_prefs and change the line to read

<X-PRE-PROCESS cmd="set" data="global_codec_prefs=G7221@32000h,G722,PCMU,PCMA,GSM"/>

or

<X-PRE-PROCESS cmd="set" data="global_codec_prefs=G7221@32000h,G7221@16000h,G722,PCMU,PCMA,GSM"/>

G7221@32000h is the siren14 codec

=== configure conference.conf.xml ===
By default, FreeSwitch plays hold music when there is only one avatar in the conference and beeps for everyone when avatars arrive and leave. To disable, edit /usr/local/freeswitch/conf/autoload_configs/conference.conf.xml. Locate the "default" profile and comment out the following lines as shown below:

[...]


[...]








[...]

==OpenSim Config==

Add the following section to OpenSim.ini. You will also need to enable voice in the regions estate settings. Make sure the freeswitch server is started BEFORE bringing the region up.

[FreeSwitchVoice]
enabled = true
;FreeSwitch server is going to contact us and ask us all
;sorts of things.
freeswitch_server_user = freeswitch
freeswitch_server_pass = password
freeswitch_api_prefix = /api
;The IP address of your opensim voice region
freeswitch_service_server = youropensimexternalIP
;the port your region is running on
freeswitch_service_port = 9000
;your freewitch IP address
freeswitch_realm = 192.168.0.2
freeswitch_sip_proxy = 192.168.0.2:5060
freeswitch_attempt_stun = false
freeswitch_stun_server = 192.168.0.2
freeswitch_echo_server = 192.168.0.2
freeswitch_echo_port = 50505
freeswitch_well_known_ip = 192.168.0.2
freeswitch_default_timeout = 5000
freeswitch_subscribe_retry = 120

It appears to work better if the IP address you put in for "youropensimexternalIP" also appears in all the subsequent slots in place of 192.168.0.2.

== Errors & Solutions ==
''' NOTE: Do not post FreeSwitch errors on Mantis, since 'melanie' will close the thread and treat you like a moron. '''

--'''[ERR] mod_xml_curl.c:230 xml_url_fetch() Received HTTP error 0 trying to fetch''': To solve this error, get the last GIT of FreeSwitch, follow this instructions (for Ubuntu) [http://wiki.freeswitch.org/wiki/Ubuntu_Quick_Start#Updating_direct_from_Git here].
--'''mod_event_socket.c -> Socket Error Could not listen on 127.0.0.1:8021''': This means something is using the port 8021, usually freeswitch is already running, on Ubuntu, try the following command: netstat -npl | grep 8021

If freeswitch is running, close is with: sudo freeswitch -stop OR sudo invoke-rc.d freeswitch stop

MAKE SURE the OpenSim region you point Freeswitch at IS NOT running when you start FreeSwitch.

ALSO make sure that you have enabled voice in the "About Land"->"Voice" dialogue in the region, you will need to be a region admin to do this.

AuthorizationService

2009-09-16T12:51:20Z

Robsmart: /* Message Formats */

The Authorization service is currently just a skeleton to be later expanded, however in grid mode it can be used to communicate an external authorization service.

== Configuration ==
To point your region at an external Authorization service edit the file

'''bin/config-include/GridCommon.ini'''

add a section such as the following, altering the URI to point to your authorization server
<code>
[AuthorizationService]
;
; change this to your grid-wide authorization server
;
AuthorizationServerURI = "http://localhost/auth.php"
</code>

== Message Formats ==

When a user attempts to enter a region an HTTP POST will be made to the AuthorizationServerURI you specified in the config. The body of the POST will be an XML serialized
AuthorizationRequest object.

'''Example'''
<code>
<?xml version="1.0" encoding="utf-8"?>
<AuthorizationRequest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<ID>decc5198-9de2-11de-be89-00145eecaa9a</ID>
<FirstName>Rob</FirstName>
<SurName>Smart</SurName>
<Email>user@host.com</Email>
<RegionName>test region</RegionName>
<RegionID>e276e142-a099-4d6d-8f2d-0aad91ede958</RegionID>
</AuthorizationRequest>

</code>

The authorization service needs to respond with an XML message that matches an XML serialized AuthorizationResponse object.

'''Example'''
<code>
<?xml version="1.0" encoding="utf-8"?>
<AuthorizationResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<IsAuthorized>true</IsAuthorized>
<Message>Rob Smart has been authorized for the region test region.</Message>
</AuthorizationResponse>

</code>

The '''IsAuthorized''' element must contain either the string '''true''' or the string '''false'''. The '''Message''' element can contain any string, at the moment this message
will only be shown on the OpenSim region console.

== Example PHP ==
A basic php example for parsing the Authorization XML and responding.

<pre>
<?php

class AuthorizationResponse
{
private $m_isAuthorized;
private $m_message;

public function AuthorizationResponse($isAuthorized,$message)
{
$this->m_isAuthorized = $isAuthorized;
$this->m_message = $message;
}

public function toXML()
{
return '<?xml version="1.0" encoding="utf-8"?><AuthorizationResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><IsAuthorized>'. $this->m_isAuthorized .'</IsAuthorized><Message>'. $this->m_message .'</Message></AuthorizationResponse>';

}
}

class AuthorizationRequest
{
private $m_isAuthorized;
private $m_message;
public $ID;
public $FirstName;
public $SurName;
public $Email;
public $RegionName;
public $RegionID;

public function parseRequest($request)
{
$reader = new XMLReader();

$reader->XML($request);
while ($reader->read())
{
if ($reader->nodeType == XMLReader::ELEMENT)
{
switch($reader->name)
{
case 'AuthorizationRequest':
//$log->write("AuthorizationRequest element");
break;
case 'ID':
$reader->read();
$this->ID = $reader->value;
break;
case 'FirstName':
$reader->read();
$this->FirstName = $reader->value;
break;
case 'SurName':
$reader->read();
$this->SurName = $reader->value;
break;
case 'Email':
$reader->read();
$this->Email = $reader->value;
break;
case 'RegionName':
$reader->read();
$this->RegionName = $reader->value;
break;
case 'RegionID':
$reader->read();
$this->RegionID = $reader->value;
break;
}

}

}
}

}

$request = @file_get_contents('php://input');

$authReq = new AuthorizationRequest();
$authReq->parseRequest($request);

$authResp = new AuthorizationResponse("true","You are authorized");
echo $authResp->toXML();

?>
</pre>

AuthorizationService

2009-09-11T18:50:56Z

Robsmart: /* Configuration */

2008-09-12T23:08:31Z

Robsmart: New page: <source lang="csharp"> //c# // This script is written as an example use of the osParseJSON method // it uses the Google translate API // ensure you have read the terms and conditions of th...

<source lang="csharp">
//c#
// This script is written as an example use of the osParseJSON method
// it uses the Google translate API
// ensure you have read the terms and conditions of the Google translate API
// http://code.google.com/apis/ajaxlanguage/documentation/

LSL_Types.key requestID;
string sourceLang = "en";
string targetLang = "fr";

public void default_event_state_entry()
{
llSay(0,"translator running say '/1 sentence' to translate something");
llSay(0,"translator running say '/2 source langage' to change target language e.g. '/2 fr'");
llSay(0,"translator running say '/3 target langage' to change source language e.g. '/3 en'");
llSay(0,"translator running say '/4 help', to list languages");
llListen(1, "", NULL_KEY, "");
llListen(2, "", NULL_KEY, "");
llListen(3, "", NULL_KEY, "");
llListen(4, "", NULL_KEY, "");
}

public void default_event_touch_start(LSL_Types.LSLInteger total_number)
{
llSay(0,"translator running say '/1 sentence' to translate something");
llSay(0,"translator running say '/2 source langage' to change target language e.g. '/2 fr'");
llSay(0,"translator running say '/3 target langage' to change source language e.g. '/3 en'");
llSay(0,"translator running say '/4 help', to list languages");
}

public void default_event_http_response(LSL_Types.LSLString request_id, LSL_Types.LSLInteger status, LSL_Types.list metadata, LSL_Types.LSLString body)
{
if (requestID == request_id)
{
// the Google JSON string returned wil be of the format
// {"responseData": {"translatedText":"Bonjour"}, "responseDetails": null, "responseStatus": 200}
// call the osParseJSON method so we can read the contents
System.Collections.Hashtable response = (System.Collections.Hashtable) osParseJSON(body);
System.Collections.Hashtable responsedata = (System.Collections.Hashtable) response["responseData"];

llSay(0,(string)responsedata["translatedText"]);
}
}

public void default_event_listen(LSL_Types.LSLInteger channelIn, LSL_Types.LSLString name, LSL_Types.LSLString id, LSL_Types.LSLString message)
{
if(channelIn==1)
{
string toTranslate = (string) message;
requestID = llHTTPRequest( "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q="+toTranslate+"&langpair="+sourceLang+"%7C"+targetLang, new LSL_Types.list(), "" );

}
else if(channelIn==2)
{
sourceLang = (string) message;
}
else if(channelIn==3)
{
targetLang = (string)message;
}
else if(channelIn==4)
{
llOwnerSay("LANGUAGE (CODE)");
llOwnerSay("* Arabic (ar)");
llOwnerSay("* Bulgarian (bg)");
llOwnerSay("* Chinese (zh)");
llOwnerSay("* Croatian (hr)");
llOwnerSay("* Czech (cs)");
llOwnerSay("* Danish (da)");
llOwnerSay("* Dutch (nl)");
llOwnerSay("* English (en)");
llOwnerSay("* Finnish (fi)");
llOwnerSay("* French (fr)");
llOwnerSay("* German (de)");
llOwnerSay("* Greek (el)");
llOwnerSay("* Hindi (hi)");
llOwnerSay("* Italian (it)");
llOwnerSay("* Japanese (ja)");
llOwnerSay("* Korean (ko)");
llOwnerSay("* Norwegian(no) ");
llOwnerSay("* Polish (pl)");
llOwnerSay("* Portuguese (pt-PT)");
llOwnerSay("* Romanian (ro)");
llOwnerSay("* Russian (ru)");
llOwnerSay("* Spanish (es)");
llOwnerSay("* Swedish (sv)");

}
}

</source>

OSSL Implemented

2008-09-12T23:02:02Z

Robsmart:

OSSL Implemented

2008-09-12T22:39:27Z

Robsmart:

OSSL Implemented

2008-09-12T22:38:40Z

Robsmart:

{| border=1 style="border-collapse:collapse;th background-color:#666;width:100%;text-align:center;"
! style="background-color:#D2ECD2;" | Function
! style="background-color:#D2ECD2;" | Explanation
! style="background-color:#D2ECD2;" | Examples
|-
| string osSetDynamicTextureURL(string dynamicID, string contentType, string url, string extraParams,int timer);
| Loads a webtexture on a prim
| [[osSetDynamicTextureURL_example1|example 1]]
|-
|-
| double osTerrainGetHeight(int x, int y);
| Gets height of terrain
|
|-
|-
| int osTerrainSetHeight(int x, int y);
| Sets height of terrain
|
|-
|-
| int osRegionRestart(double seconds);
| Restarts the region
|
|-
|-
| void osRegionNotice(string msg);
| Sends a notice to the region
|-
|-
| (c# only)
| System.Collections.Hashtable osParseJSON(string JSON);
| returns a hashtable containing the structured JSON contents
|
|-
|}
[[Category:Users]]
[[Category:Development]]

Troubleshooting

2008-09-04T22:59:36Z

Robsmart: /* System.DllNotFoundException: gdiplus.dll */

[[Category:Users]]
This page gives any system-specific configuration settings that may be useful, and advice for problems that might be encountered.

== System-specific configuration ==
=== CentOS 5 ===

To install mono and nant, you can use the "Linux Installer for x86" found at http://www.mono-project.com/Downloads.

SVN can be installed by:

yum install subversion

Mono defaults to installing into <tt>/opt</tt>, so you may have to add this path to your environment variables, for example, in your <tt>~/.bashrc</tt>:

export PATH="/opt/mono-1.2.5/bin:$PATH"
export PKG_CONFIG_PATH="/opt/mono-1.2.5/lib/pkgconfig:$PKG_CONFIG_PATH"
export MANPATH="/opt/mono-1.2.5/share/man:$MANPATH"
export LD_LIBRARY_PATH="/opt/mono-1.2.5/lib:$LD_LIBRARY_PATH"

After changing <tt>LD_LIBRARY_PATH</tt>, you should update the dynamic linker cache:

ldconfig

You may still encounter the "The current runtime framework 'mono-2.0' is not correctly configured in the NAnt configuration file." error listed below. In that case, this may fix this:

yum install glib

If you are running a firewall as well (i.e., if <tt>iptables -L</tt> shows a list of ACCEPT and REJECT rules), you'll have to open the necessary ports if you want to access the sim from other machines. For standalone mode:

iptables -I RH-Firewall-1-INPUT -p tcp --dport 9000 -j ACCEPT
iptables -I RH-Firewall-1-INPUT -p udp --dport 9000 -j ACCEPT

=== Debian 4.0r0 ===

If you set your system to use unstable sources, and then install some packages listed below, everything should just work. To use unstable sources, modify your <tt>/etc/apt/sources.list</tt> file, replacing 'etch' or 'stable' with 'unstable':

deb ftp://ftp.debian.org/debian/ unstable main
deb-src ftp://ftp.debian.org/debian/ unstable main

Then update your packages to the new versions:

apt-get update
apt-get dist-upgrade

This will probably change a large number of packages, and may break things.
In my experience, however, if you do not use unstable sources then the packages are not up to date enough, and you run into version issues, which lead to two DllNotFoundException errors below appearing in the console output: gdiplus.dll and libopenjpeg-libsl-2.1.2.0.so.

Once the sources are updated, we need to install the necessary packages to be able to build OpenSim:

apt-get install subversion mono nant mono-gmcs mono-mjs libmono-microsoft8.0-cil libmono-system-runtime2.0-cil

If any of these packages are missing, you'll probably encounter one of the errors listed below. However, with these packages, OpenSim should build cleanly.

Please note: If you are using mysql as storage on unstable you may get the following error:-

Exception: System.NotSupportedException: CodePage 1252 not supported
at System.Text.Encoding.GetEncoding (Int32 codePage) [0x00000]

To get it to work, try installing the libmono-i18n2.0-cil package

apt-get install libmono-i18n2.0-cil

=== Gentoo ===
some Mono dependency & latest Mono itself may use "~x86" masked packages (assuming x86 is your platform, change may be made to reflect your ex:"~amd64" for 64bits). You could check for USE parameter with:

ACCEPT_KEYWORDS="~x86" emerge -vp subversion nant mono libgdiplus

Then install with:

ACCEPT_KEYWORDS="~x86" emerge subversion nant mono libgdiplus

N.B: The ACCEPT_KEYWORDS="~x86" can be set in Gentoo /etc/make.conf file, but that turn up all the emerges in testing/unstable, using it at the begining of emerge command line use it only for current emerge process

=== Mac OS X ===
This assumes you're using the universal binary for mono from the [http://www.mono-project.com/ Mono Project] site.

If you are using OS X 10.4, you should also install X11 from the OS X install CDs.
In OS X 10.5, this is not required.

If you get errors about the 2.0 framework not being supported, you may need to update your <tt>pkg-config</tt> path.
I set this in <tt>~/.bash_profile</tt>:
export PKG_CONFIG_PATH="/Library/Frameworks/Mono.framework/Versions/Current/lib/pkgconfig/:${PKG_CONFIG_PATH}"

== Errors and fixes ==

=== Build workarounds due to non-functionality or bugs: ===

==== Disappearing prims due to duplicate UID's ====
Generally this problem occurs when a save-xml/load-xml file is loaded into the same sim without using the -newUID switch to generate new UUID's for the objects. This switch is documented in the [[Running#General OpenSim server commands|general server commands]] section. (<nowiki>load-xml <filename> -newUID</nowiki>). But if this does not work, the other way is to shift-copy your build and drag it up into the air.. then delete the one in the air, (which is actually the copy). This will generate new UID's on all your prims.. you can now leave that build, and load your original load-xml file in another region.

==== Linked objects not scaling/editing properly ====
From Mantis [[http://opensimulator.org/mantis/view.php?id=135 # 135]] and [[http://opensimulator.org/mantis/view.php?id=223 # 223]]: 
Linked objects: while linking/unlinking objects seems to work fine, the editing of single prims inside a linked object doesn't work correctly. You have to check the box "Edit linked parts", then you can select a single prim and edit it, but in most cases the changes in size- and/or postion-parameters are not accepted and revert immediately to the original ones. It is not completely reproducible, as it may work in some single case though. 
'''Workaround:''' unlink the whole object, make the changes, and relink the whole thing again. ''note:'' re-scaling unlinked objects in grid mode seems to work better than in standalone.

<hr>

=== Exception and loss of ode physics System.EntryPointNotFoundException: dSpaceLockQuery ===

The following is usually caused by using the wrong version of libode. First try find / -name "libode.so" to see if you have other copies of the ode physics engine. Then make sure you have the latest version of this.

[SCENE] [02-01 22:20:40] System.EntryPointNotFoundException: dSpaceLockQuery
at (wrapper managed-to-native) Ode.NET.d:SpaceLockQuery (intptr)
at OpenSim.Region.Physics.OdePlugin.OdeScene.waitForSpaceUnlock (IntPtr space) [0x00000]
at OpenSim.Region.Physics.OdePlugin.OdeCharacter.AvatarGeomAndBodyCreation (Single npositionX, Single npositionY, Single npositionZ, Single tensor) [0x00000]
at OpenSim.Region.Physics.OdePlugin.OdeCharacter..ctor (System.String avName, OpenSim.Region.Physics.OdePlugin.OdeScene parent_scene, OpenSim.Region.Physics.Manager.PhysicsVector pos) [0x00000]
at OpenSim.Region.Physics.OdePlugin.OdeScene.AddAvatar (System.String avName, OpenSim.Region.Physics.Manager.PhysicsVector position) [0x00000]
at OpenSim.Region.Environment.Scenes.ScenePresence.AddToPhysicalScene () [0x00000]
at OpenSim.Region.Environment.Scenes.ScenePresence.MakeRootAgent (LLVector3 pos, Boolean isFlying) [0x00000]
at OpenSim.Region.Environment.Scenes.Scene.AgentCrossing (UInt64 regionHandle, LLUUID agentID, LLVector3 position, Boolean isFlying) [0x00000]
=== MySQL connection errors after about 6-8 hours ===

MySQL has a timeout which drops the connection after 28,800 seconds (8 hours) of inactivity, which will probably result in failure to login after the User server has been sitting idle for an extended period. If you have this problem, increase the timeout to something larger, like 604800 (1 week) or 31536000 (1 year). From the mysql console, type:

set global wait_timeout=604800;

=== System.DllNotFoundException: gdiplus.dll ===

First, check to make sure that <tt>libgdiplus.so</tt> is known to the dynamic linker:

/sbin/ldconfig -p | grep libgdiplus

If nothing is found, make sure that the directory libgdiplus.so exists in is either in your <tt>LD_LIBRARY_PATH</tt> environment variable or listed in a *.conf file (e.g., gdiplus.conf) in /etc/ld.so.conf.d/. Then run <tt>ldconfig</tt> to update the cache. Then it should be able to find the library.

You may still have the above error, however, since libgdiplus also depends on other dynamic libraries, and if they fail to load, libgdiplus will fail. To test for this, run OpenSim with debugging information turned on:

MONO_LOG_LEVEL=debug mono OpenSim.exe

{It may show errors loading other libraries, like <tt>libexif.so.9</tt>. In that case, linking to an existing version of the offending library may work:

ln -s libexif.so.12 libexif.so.9

On Mac OS X - check the following file exists... /opt/local/lib/libgdiplus.dylib if it does then as root user edit the file /opt/local/etc/mono/config
and add the line
<dllmap dll="gdiplus.dll" target="/opt/local/lib/libgdiplus.dylib" os="!windows"/>

''(Is there a cleaner solution than this?)''} **see below for alternative/cleaner fix**

== When installing mono or libgdiplus0 you may get dependency missing libexif.so.9 ==

This was noticed on Centos5 but may occur on other systems, download ftp://rpmfind.net/linux/conectiva/snapshot/i386/RPMS.extra/libexif9-0.5.12-47547cl.i386.rpm and install problem solved. You will now be able to install mono (as long as nothing else goes wrong )

=== The assembly mscorlib.dll was not found or could not be loaded ===

This indicates that you are missing one of the mscor libs that comes with nant. This is easily solved by getting NAnt, which comes with both versions 1.0 and 2.0 of the required lib.

apt-get install nant

=== External Program Failed: /usr/lib/pkgconfig/../../lib/mono/2.0/gmcs.exe ===

This is quickly fixed by retrieving mono-gmcs.

apt-get install mono-gmcs

=== The type or namespace name JScript does not exist in the namespace Microsoft ===

Note that it says Jscript over and over again. Hint perhaps?

apt-get install mono-mjs libmono-microsoft8.0-cil

On Fedora, the needed package is mono-jscript

=== The type or namespace name Tcp does not exist in the namespace System.Runtime.Remoting.Channels ===

This one is taken care of with a quick install:

apt-get install libmono-system-runtime2.0-cil

=== Missing: libopenjpeg-libsl-2.1.2.0-x86_64.so ===
You are on 64bit linux machine and my need to follow these instructions: [[Installing_and_running_on_x86-64 |Installing and running on x86-64 ]]

=== error while loading shared libraries: libgthread-2.0.so.0: cannot open shared object file ===

If you start with a base Debian system as we did at the top of the page, but instead of using the apt version of mono you use the installer from their website, then you may encounter this issue.

After getting the .bin file from http://www.mono-project.com/Downloads, and executing it as per its instructions, upon finishing, you may find that if you try to run `mono --version` you are presented with this message. This one means you need to install libglib2.0-0.

apt-get install libglib2.0-0

=== The current runtime framework 'mono-2.0' is not correctly configured in the NAnt configuration file. ===

This one seems to be fixed by retrieving the apt version of nant.

apt-get install nant

This can also be due to <tt>pkg-config</tt> not being able to locate the <tt>mono.pc</tt> file. Adding the directory containing this file to the environment variable <tt>PKG_CONFIG_PATH</tt> may solve this.

== Networking and config issues ==
[[OpenSim:Running |See Running section]]

=== You are able to log in, but not connect to a Region from a remote client ===

Look in your OpenSimulator/bin/Regions folder
1) Try 0.0.0.0 for the internal_ip_address in your region.xml(default.xml) file
(you'll have one of those files *per* region you've created)
2) external_host_name="127.0.0.1" will need to be changed to the accessable DNS name
such as "opensim.example-host.com" or "71.6.131.152" (your public accessable ip)

==Building OpenSim==
===I can't find any build files or solution files===
* If you're on Windows, run <tt>runprebuild.bat</tt> - on Linux/Mac/FreeBSD, run <tt>runprebuild.sh</tt>
=== VS2005 won't open the .sln file ===
* Try running VS2005 C#. You are probably running VS2005 C++. This is a C# project.

==Running OpenSim==
=== Running OpenSim.exe from a Cygwin shell has access denied for some dll's ===
* Do a '<tt>cd bin</tt>' followed by '<tt>chmod a+x *</tt>' to make all dll files executable.
===I cannot start my sim===
* See [[Configuration]]

==Something Has Gone Wrong!==
=== I get errors concerning 'owner_uuid' when starting up my grid after updating from svn beyond r3254 ===
When updating to recent revisions after r3254, we are now using the unused owner_uuid. There are some grids whose mysql tables were created during a time when this field was inadvertently removed from the .sql script that initializes the regions table. Logging in to your mysql instance and executing this SQL query to add the missing owner_uuid should solve this issue:
alter table `regions` add column `owner_uuid` varchar(36) default '00000000-0000-0000-0000-000000000000' not null, comment 'Rev.2';
The punctuation around regions and owner_uuid is "grave accent". The punctuation around the default value and the comment is the single quote. The "grave accent" is the one generally to the left of the One button, under the tilde and the single-quote, is, well, underneath the double quote. I think this matters to mysql.

=== I get errors concerning 'State' when starting up my grid after updating from svn beyond r3786 ===
After r3786, a new 'State' field has been added to the 'primshapes' table on SQLite. This field is used to persist trees and grass.
You may have an empty region at startup, because OpenSim does not find this 'State' field and does not know what to do.
The best is to use SQLiteBrowser or another SQLite table editor (download it at [http://sqlitebrowser.sourceforge.net/ http://sqlitebrowser.sourceforge.net/]) to create the missing field:
alter table primshapes add column State integer default 0
Just launch SQLiteBrowser, use File/Open database, then browse to OpenSim.db file and open it. Then, go to the "Execute SQL" tab, copy/paste the command above in the "SQL string" textbox, then hit the "Execute query" button.

=== I get a timeout during region handshake ===
* Do you have the correct IP in your Regions\* config files?
* Do you have multiple interfaces on the server running OpenSim? OpenSim will not bind outgoing UDP packets to a specific IP, its default IP to reach you will be what the Region answers UDP with. If you have configured the region for another IP you will get a timeout during connect.

=== I cannot connect to my OpenSim ===
* See [[OpenSim: Connecting]]

===I can connect but cannot move===
If the client connects but the avatar can only spin in place and not move, then the sim is not correctly configured. It completed the initial login function, but packets are not being exchanged between the client and the sim, probably due to a network configuration error on the sim.
* See [[OpenSim: Configuration]]

=== From time to time my Avatar seems to get stuck ===
Right now there is a bottle neck when syncing prims off to the database. This will cause small (5 - 10 second) apparent hangs of the Avatar, but it will recover fine once the data is synced. It is a known issue based on legacy architecture of some of the data storage code. We hope this will be removed soon.

=== I have problems with viewing the worldmap ===
* This may happen when running OpenSim on a Linux server, both in grid or standalone mode.
* Symptoms: when opening the worldmap window in the SL-viewer, the sims are not displayed grahically in the worldmap, the server console shows some error related to openjpeg, the current session freezes...
* Reason: your svn source trunk does not have the correct (or whatever...) <tt>libopenjpeg-libsl</tt> library.
* Other reason: the file "defaultstripe.png" does not exists in the same OpenSim folder, or is corrupted.
* Solution: get the newest code from libsecondlife (<tt>svn co svn://opensecondlife.org/libsl/trunk</tt>), '<tt>make</tt>' manually in the subdir <tt>openjpeg-libsl</tt>, and copy the resulting <tt>libopenjpeg-libsl-2.1.2.0.so</tt> into your OpenSim <tt>bin</tt> subdir, overwriting the existing one.
* Recompile & restart OpenSim

==Exceptions on the Console==
This is a list of Exceptions that you may see on the console, what they mean, and if they are a problem.

===System.DllNotFoundException: ./libopenjpeg-libsl-2.1.2.0.so===
Failed generating terrain map: System.DllNotFoundException: ./libopenjpeg-libsl-2.1.2.0.so
at (wrapper managed-to-native) OpenJPEGNet.OpenJPEG:LibslAllocDecoded OpenJPEGNet.OpenJPEG/LibslImage&)
at OpenJPEGNet.OpenJPEG.Encode (System.Byte[] decoded, Int32 width, Int32 height, Int32 components, Boolean lossless) [0x00000]
at OpenJPEGNet.OpenJPEG.EncodeFromImage (System.Drawing.Bitmap bitmap, Boolean lossless) [0x00000]
at OpenSim.Region.Terrain.TerrainEngine.ExportJpegImage (System.String gradientmap) [0x00000]

You are on Linux, and the native lib libopenjpeg-libsl-2.1.2.0.so is not compatible with your system for one of the following reasons:
* You have an old processor (libopenjpeg has been compiled with optimizations)
* You are running in 64bit mode (none of the native libs are built for 64bit)

You can rebuild your own libopenjpeg from source, or run in a compatible environment.
You can do this by:
svn co svn://opensecondlife.org/libsl/trunk libsl
cd libsl/openjpeg-libsl/
make

then copy libopenjpeg-libsl-2.1.2.0.so into OpenSim bin-folder.

==Grid Mode==
Note: Grid Mode isn't officially supported yet. As such, you are pretty much on your own if you are trying to get OpenSim up and running in Grid Mode.

=== I start the sim and it doesn't connect to any grid ===

When OpenSim is first started, it needs configuration.

* See [[OpenSim: Configuration]].

===I start the OpenSim.Grid.UserServer.exe and it gives an error===
If this error is access denied for <tt>username@localhost</tt>, the mysql database is not set up.
It will print some text and wait for input - either an enter to accept a default value, or another value you can supply.
* See [[OpenSim: Configuration]].

===I want to run my own Local Grid but one or more servers fail to start===
* Be sure that you're able to start <tt>OpenSim.exe</tt> alone, in Standalone mode, and to be able to login.
* Start the servers in the correct UGAS order and answer the questions as recommended (see [[OpenSim: Configuration]]).
* Set all the external URI's to the correct IP: 127.0.0.1 if running on your local machine, or aaa.bbb.ccc.ddd if running on a remote server.
* Check again all the <tt>*.xml</tt> configuration files for any wrong settings or typing errors...!
* Don't forget to connect with your SL-viewer to port 8002 (Grid User-Server) instead of 9000 (Standalone OpenSim-Server).
* Delete all <tt>*.xml</tt> and <tt>*.yap</tt> files in the <tt>bin</tt> directory if you want to run a full reconfiguration again.

===I get a bunch of asset not found errors, while connected to a online grid, and my inventory doesn't seem to work right===
*Make sure your opensim.ini has ' asset_database = "grid" ' otherwise it will not work correctly.
[[Category:Users]]