What I ended up doing to fix this was I added all the DLLs referenced by MonoGame.Extended.Content.Pipeline.dll to its folder, as defined in the Content.mgcb config file at the line below:
/reference:…\packages\MonoGame.Extended.Content.Pipeline.3.7.0\lib\netstandard2.0\MonoGame.Extended.Content.Pipeline.dll
As a permanent fix to get going with my project and not deal with these needless issues
- I’ll remove ALL nuget references in my project
- I’ll add the actual referenced DLLs to a library folder in my project and will move references in my VS solution and Content.mgcb config file to these DLLs
- I’ll update the referenced DLLs when necessary
Hope that helps anyone else dealing with this.