How to git ignore subfolders / subdirectories?
Have you tried wildcards?
Solution/*/bin/Debug
Solution/*/bin/Release
With version 1.8.2 of git, you can also use the ** wildcard to match any level of subdirectories:
**/bin/Debug/
**/bin/Release/
You can use .gitignore in the top level to ignore all directories in the project with the same name. For example:
Debug/
Release/
This should update immediately so it's visible when you do git status. Ensure that these directories are not already added to git, as that will override the ignores.