So, I dragged about 20 projects onto my portable harddrive to free up space on Aperture but I can’t seem to get the project back across to work on them. I’ve tried dragging over into my projects and it looks like its importing it ‘merging library’ is the message but after a few seconds it disapears and the project does mot appear in Aperture. If I go to file>switch libray then the project is in here and I am able to switch to that but now all my existing Apertute projects dissapear. I just want to be able to drag projects back and forth, work on them, then leave back on my ext Hard Drive.