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

Open in new window

What do I need to do for this message to complete and I be able to upgrade my store?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

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?
Julian HansenCommented:
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.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sharingsunshineAuthor Commented:
thanks for trying
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.