Could not load file or assembly Error?

Question

Could not load file or assembly 'Microsoft.Office.Interop.Excel' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Error is occurs how to fix it. I refer some solutions they are tell install MS Office (MS Excel) but still show the same error how to fix

Sandip G. Patil · Answer

It needs to be MS-Office installation on your machine

Amit Gupta · Answer

@Raja As you had already took the reference from the dll prior to install the Excel, it might having issue with the version conflict. I would prefer to remove the reference and add the reference back for the latest release version from the reference window. Clean and Rebuild your project. Or you can add version slot in your config file as mention in the below link as posted by Rajeesh http://stackoverflow.com/questions/93879/hresult-0x80131040-the-located-assemblys-manifest-definition-does-not-match-t

Amit Gupta · Answer

@Raja Yes, Microsoft.Office.Interop.Excel requires MS Excel to be install on your system to work with. Installing Excel will fix that issue

Rajeesh Menoth · Answer

Hi, Please check the reference : http://stackoverflow.com/questions/93879/hresult-0x80131040-the-located-assemblys-manifest-definition-does-not-match-t https://social.msdn.microsoft.com/Forums/vstudio/en-US/1316134e-9336-46b6-839e-08e2fb77a5b6/could-not-load-file-or-assembly-microsoftofficeinteropexcel-version12000?forum=vssetup https://forums.asp.net/t/1530230.aspx?Could+not+load+file+or+assembly+Microsoft+Office+Interop+Excel+Version+12+0+0+0+Culture+neutral+PublicKeyToken+71e9bce111e9429c+or+one+of+its+dependencies

Raja · Answer

Amit Gupta i have installed ms excel but still show the error

Could not load file or assembly Error?

Answers (5)