Sometimes I need to use a project in another such as a UI framework in my application or something and most of them are available in repositories like github etc, I usually download and extract the files to my project folder but soon the eclipse begins to alert several errors generally for two reasons
R
for the package is wrong ie it
usually refers to the original framework package not to my own
project (Obvious Thing rsrs) R
does not identify Resources and they often get
inaccessible