I added g4p in your subject line so help quarks to spot the topic, just in case...

" processing cant delete some directiories"
What directories? Can you report the exact error you get?

I just tried it and got the same result - I don't know why "g4p needs to be repackaged according tool guidelines" should appear.

Until I find out more I suggest you download the zip file from here and follow the guide for a manual instal

The problem seems to affect all the tools perhaps it is a re-occurance of bug 1607

Would be great if we got some feedback from other users before entering a bug report.

I also got the failed to move folder problem : I have experienced this problem before and I think it is to do with permissions since it seems to clear after restarting Processing.

I have also changed the topic to more clearly reflect the problem.

Thank you for your help. Is that anything I can do to help with further progress ? Some detail error descrition or ?