NuGet app.config / web.config Transformation Trouble

This article details a developer's experience with NuGet package transformation issues when adding app.config and web.config transforms. The author explains how three factors—source control (TFS), not bumping package versions, and enabling NuGet Package Restore—combined to prevent transforms from applying correctly. The troubleshooting workflow failed because 'undo pending changes' did not remove the package from the packages folder due to source control exclusion. The solution involved manually deleting the package folder and reinstalling. This is relevant to IT/technology as it covers NuGet package management, configuration transforms, and debugging workflow in .NET development.