Failed to execute SQL string when Installing Dynamics NAV 2009


One not complete uncommon error when installing Dynamics NAV 2009 is the one bellow:

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Microsoft Dynamics NAV 2009 Build 27808
Error Report
SQL Server option
Microsoft Dynamics NAV 2009 Components for Microsoft SQL Server
Fatal error during installation.

Error -2147217865: failed to execute SQL string, error detail: Invalid object name ‘master.sys.objects'., SQL key: DropXpNdoGroups SQL string: IF EXISTS (SELECT * FROM [master].[sys].[objects] WHERE name = ‘xp_ndo_enumusergroups') EXEC sp_dropextendedproc xp_ndo_enumusergroups
Cronus Sample Database for Microsoft Dynamics NAV 2009
Fatal error during installation.

Error -2147217865: failed to execute SQL string, error detail: Invalid object name ‘master.sys.databases'., SQL key: StopIfDatabaseExist SQL string: IF EXISTS (SELECT * FROM [master].[sys].[databases] WHERE name = ‘Demo Database NAV (6-0)') RAISERROR (N'A database with name %s already exists.',20,1,'Demo Database NAV (6-0)') WITH LOG
Fatal error during installation.
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The problem is normally wrong version of SQL Server or access right problems. The first problem is easy to solve since you only need to ensure that you have SQL Server/Express 2005 or 2008 installed or no SQL Server installed at all. The SQL Server need to user service account "NETWORK SERVICE". The user that is installing Dynamic NAV 2009 needs to be sysadmin for the server and on the system database "master".

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