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Receiving error "Error while trying to run project: Unable to start debugging on the web server. The COM+ registry database detected a system error" when trying to debug in Visual Studion .NET

Posted on 2004-09-28
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Last Modified: 2012-05-05
I have tried just about everything. Checked to make sure the user is part of the local VS Developers, Debuggers and Administrator group. Made sure the user had rights to that folder. Everything was working fine on this workstation, nothing was changed then this problem just came from nowhere. I am using IIS locally and I also use SourceGear Vault to track application changes.
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Question by:periker
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Expert Comment

by:Bob Learned
ID: 12173370
Did you install the Visual Studio .NET server components on the web server?

Bob
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Author Comment

by:periker
ID: 12173788
Yes
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Expert Comment

by:Bob Learned
ID: 12173817
Was this ever working correctly for you?

Bob
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Expert Comment

by:Bob Learned
ID: 12173823
Have you modified the web.config or machine.config file for the web?

Bob
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Author Comment

by:periker
ID: 12174042
It was working previously. No changes were made. I didn't do anything with web.config. I did modify the user in the <process key in machine.config.

Another note is that this is not actually my laptop but one of my developers.
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Accepted Solution

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Bob Learned earned 1000 total points
ID: 12174067
I have seen some very strange errors come down to not having the right syntax entries in the web.config and machine.config.  The entries are case-sensitive, so make very sure that you haven't changed something inappropriately.

Bob
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Author Comment

by:periker
ID: 12190326
I tried debugging a different project before and got the same error messages. After making tons of changes based off of other suggestions I eventually tried that other project again and it debugged fine. NOw the problem appears to be the current project itself. Thanks for your help.
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