Assembly's definition does not match

Question

Error 2 Could not load file or assembly 'CrystalDecisions.Enterprise.Framework, Version=10.2.3600.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Can anyone tell how to correct this error? I tried to delete the files from the bin folder and I even tried downloading a new dll file and added reference to it. Still it didnt work out.

Answer 1

The solution was pretty simple. Just delete the assembly and associated files from my projects bin folder and then choose Add Reference to add the latest version back in.

Answer 2

This can be due to your project file referring to one version while the version copied into the bin folder is a different one. So when the app runs it's trying to load the version the project file references, but finds only the one copied into the bin folder.

Was the library added through Nuget? It could be that the version in the referenced in packages.config and used in the build doesn't match the version number in the project file.