Failed to Load file or assembly System. Data, Version = 2.0.0.0

When 2005 is enabled, the following error occurs:

Failed to Load file or assembly "System. Data, Version = 2.0.0.0, Culture = neutral, PublicKeyToken = b77a5c561934e089" or one of its dependencies. The system cannot find the specified file.

Solution:

Open the "C: WINDOWSassembly" folder and check whether there is an Assembly named "System. Data", Version number, and Public Key flag that is consistent with the Version and PublicKeyToken values in the error message.

If not, set "C: WINDOWSMicrosoft. system Under NETFrameworkv2.0.50727. data. dll is dragged to C: WINDOWSassembly. A new System is generated under C: WINDOWSassembly. data assembly (if there are no earlier versions of the Assembly), this problem will not occur after you reconnect to the database.