Xamarin
A Microsoft open-source app platform for building Android and iOS apps with .NET and C#.
5,296 questions
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
I have installed a lot of packages in my sub project but no one is recognized with the message : The reference component "XXXXXXX" could not be found.
I Found the solution, the problem occurs in project.prj
base on this link https://stackoverflow.com/questions/5129090/how-to-edit-csproj-file/5129214#5129214 and after that i have migrated to AndroidX and the yellow icons gone away