help, Migrate projet 4.24 to 4.27

My version 4.27.2 of unreal engine 4 now compiles perfectly new projets

However, those projects that I have made in a previous version (4.24) which I convert to 4.27 following the instructions suggested by Epic, I cannot make them compile neither in android nor in windows using 4.27 (if they compile in 4.24). Any suggestions to be able to make these projects 4.24 to 4.27 compatible since I need to migrate them?

If they are failing to compile, you need to look at the output logs and search for the errors. If you are compiling in Visual Studio, look at the build output there. If you are trying to package from the editor turn on the Output Log and look there.

Thanks in the end the problem was solved.

the error was resolved by left clicking on the content pane and selecting ¨Fix Up Redirectors in folder¨

Thank you very much, I leave it in case someone has the same problem.