Prestashop 1.5 1-Click Upgrade Problem

I am getting this error when I try to upgrade to  PS 1.6.  
Unable to check MD5 files

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What do I need to do for this message to complete and I be able to upgrade my store?
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Julian HansenConnect With a Mentor Commented:
Can't help beyond that - topic is quite narrow for these forums I think - you might get lucky with another expert who has had experience with this problem and solved it but I don't think that is very likely. Best option is to try the prestashop forums.
Julian HansenCommented:
Have you had a look at this forum post

Specifically this one

Ok, Found solution, I think.


It was indeed the file permissions issue.


All autoupdate folders (both in admin/ and modules/) should have chmod 755. Module installs them with 777.

All module files should have 644. Module installs them with 666.


My question now is: Why the module installs its own files with wrong permissions?
sharingsunshineAuthor Commented:
I tried that and the pre-upgrade checklist ( ) didn't pass like it did before I made the changes.  It is flagging the autoupgrade folder being changed to 755. Also, I have the exact same shopping cart version installed on the same server and they are 777 recursively and that site has been working for years.

Is there a md5 file somewhere?
sharingsunshineAuthor Commented:
thanks for trying
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