I have created a new Vb.Net project with VS2019. The project is created using the VSIX Project template, using "Place Solution and Project in the same directory" as the default. This results in a single directory (call it MyExtensionProject1) that compiles successfully.
If I close VS, then rename the project's folder (say, to MyExtensionProject2) then load the .sln file back into VS2019, a compile fails with several errors about Types that are not defined, Fields and Properties that are not found, etc.
This did not happen using VS2017.
Has something changed in VS2019 to cause this? I would like to know that I can changed the "container" folder name for a project without something breaking.