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I have Install new instance of sql server in the server and Now the TFS2010 not working with error :

TF30065 An unhandled exception occurred

I can't found the real error to fix it, how I know the error detail or how I fix this ! there's many project in it and I have to fix it

thank you for any suggestion

edit : I found the error log of the error

Message d'exception :

Échec du chargement du fichier Msxmlsql.dll. L'instruction préparée avec le handle 0 est introuvable. sp_xml_removedocument : la valeur fournie pour le paramètre numéro 1 n'est pas valide. WIN-Server\SQLEXPRESS.Tfs_Configuration..prc_QueryCatalogNodes: Database Statement Failure - Error %error="8179";% executing INSERT statement for @pathSpec L'instruction a été arrêtée. (type SqlException)

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Can you still connect to the original instance via SQL Server Management Studio? Are the databases still there? – Chris McKeown Oct 3 '12 at 11:56
@ChrisMcKeown yes I can connect to the original database, I have the first sql V 10.1. and I installed V 10.50.1600 and the two work fine – Akrem Oct 3 '12 at 12:48
Did you reboot after the installation completed? – Betty Oct 4 '12 at 8:37
up vote 0 down vote accepted

I have remove the second sql instance but the same error, then I have upgrade the first instnace from 10.0 to 10.50 the same of the new instance installed and it work now

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