Had the same problem, you could try sudo chmod -R 777. It worked for me, BUT chmod 777 is very very dangerous, mainly because it gives pretty much everyone file access. If anyone could get onto your computer, that means everyone has access to the file you selected with chmod 777.
My point is, chmod 777 if you don't care about your computer. If you do care about your computer uhh... hmm. Not sure about that.