The value of the property 'type' cannot be parsed. The error is: Could not load file or assembly 'Microsoft.Office.BusinessApplications.Fba,Version=188.8.131.52, Culture=neutral, PublicKeyToken...
How to fix the "Value of the property 'type' cannot be parsed" errorThis error happens when there is a corrupt VSTO file already present in your system, possibly from another Outlook plugin.
To allow the Outlook installation you will need to delete this file. Note - You may want to keep a backup copy of the file for future needs.
- Open Windows Explorer
- Visit the exact file path described in your error message (e.g. C:\Program Files\Common Files\Microsoft Shared\VSTO\10.0
- Locate the file named VSTOInstaller.exe.Config
- Delete this file
- Now you will be able to install the plugin