Solucionado
Não consigo importar o projeto abaixo no eclipse:
https://github.com/alura-cursos/java-II-alura/archive/256af13cc403e09e051909682a0175526051b931.zip
O que tentei fazer:
File > Import > General > Existing Projects into Workspace > select root directory: arquivo descompactado > Erro que aparece: No projects are found to import
Descobriu?
Isso soluciona o problema:
Goto File > New > Project
Select the type of project, click Next
Uncheck Use default location
Click on Browse to navigate to your source folder, or type in the path to your source
Click Finish