Web Platform Installer - ProductId NETFramework4 not found

Question

After setting a custom feed in Web Platform Installer when trying to set up mojoPortal the program crashed with the error ProductId NETFramework4 not found:

When trying to launch the program again the same error happened upon launch.

I tried re-installing the program but the problem remained.

Answer 1

The fix that worked for me was to delete the configuration file webpi.preferences found in the folder:

C:\Users\UserName\AppData\Roaming\Microsoft\Web Platform Installer

To get there you can:

1. Press: Win + R

2. Type: %APPDATA% Enter

3. And then navigate to the folder mentioned above and delete the preferences file.