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 Post subject: How to diagnose OpenSim MySQL startup issue
PostPosted: Fri Oct 25, 2019 12:24 pm 
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Joined: Mon Oct 15, 2012 5:22 pm
Posts: 45
Over the years, I have successfully installed OpenSim many times to work and connect to OSGrid from several different Ubuntu Linux servers. But on a new server, I am getting an error message early in the console startup:

"[SERVICE BASE]: Failed to load plugin OpenSim.Region.Framework.Interfaces.ISimulationDataStore from OpenSim.Data.MySQL.dll with args Data Source=localhost;Database=test3x3;User ID=test3x3;Password=********;System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies."

I have succeeded logging into the mysql console with the database, username and password listed in this error, and I can see the database there. It is still empty because so far OpenSim hasn't been able to use it.

From the mysql root account, I made sure that the opensim user has all privileges. By entering a command like:
GRANT ALL PRIVILEGES ON test3x3.* TO test3x3@localhost IDENTIFIED BY '********';
This has not helped.

I created a second database named test3x3 (originally I had database opensim and user opensim) and this made no difference.

I tried removing mysql and re-installing it on the server, that didn't help.

Since I first got this error message I have successfully installed mysql and opensim on yet another Ubuntu Linux system, and it worked there! I thought I installed everything in exactly the same way. What could be different?

Is there a way to get more detail in the console about the error message I am getting?

Any other suggestions of things to try?

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 Post subject: Re: How to diagnose OpenSim MySQL startup issue
PostPosted: Wed Oct 30, 2019 7:49 am 

Joined: Thu Aug 16, 2018 6:41 am
Posts: 29
Double check that in your config file(s) you have comented out the reference to mysqli. I've not got remote access to my server at the moment so I can not see if that could replicate the error.


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