I am trying to import a project that me and my co-worker have been working on.. and keep getting this error after I select-- \"import\" then \"import existing project\" then
This worked for me.
File > New > Android Project > Create project from existing source
Location = the location of the project you want to import.
You will get a warning "An Eclipse project already exists in this directory. Consider using File > Import > Existing Project instead." But you will be able to click "Next" and the project should in effect be imported.