Impossible to upgrade from v11.1.56 to version-12

[Jaime_Stuardo]

@brian_pond

@Jaime_Stuardo

cannot import name PackageFinder

Hi Jaime - Looks like you’re using Python 2.7. I believe ERPNext 12 is only supporting Python 3 now. That may be part of the problem.

During the upgrade, it appears pip is trying to upgrade itself. But cannot:

pip install --upgrade pip

‘Package Finder’ is a component of pip. I don’t know the inner workings, but here’s a link:
Finding and choosing files (index and PackageFinder) - pip documentation v24.0

While this doesn’t solve your problem, hopefully it helps point you in a good direction.

Hello,

I could finally install ERPNext 12.11.2 in my Python 2.7.5 system, but I think I was “lucky”.

The fact is that a hosting problem occured some weeks ago. That hosting crash caused my ERPNext installation got corrupted. Fortunately, database was kept intact, so, I have reinstalled the last version of version-11 branch from scratch.

That was not an easy process since it seems branch names have changed. One of my attempts took me to get ERPNext version 13 beta, huh? I did not understand what happened, but that gave me the clue if version 13 beta supports Python 2.7.5, version 12 should support it also.

Well, then I downgraded from version 13 beta to last version of 11 branch and finally I have restored the old database into the new created one. That way, version 11 was working as before.

Today I had time to try to update to version 12 again, so I followed the easy instructions in this post:

Update of ERPNext version 11 to Version 12

@cyberdee Hi the steps are easy.Do the following: Step 1. Locate your .git/config file then edit this line from [remote “upstream”] fetch = +refs/heads/master:refs/remotes/upstream/master to become: [remote "upstream"] fetch = +refs/heads/*:refs/remotes/upstream/* Step 2. Also locate this config file : /frappe-bench/apps/erpnext/.git/config then edit the following line to be as follows [remote "upstream"] url = https://github.com/frappe/erpnext f…

After it, I got an error in redis server, but searching the error, I have run this command:

redis-cli -p 13001 FLUSHALL

Finally, after version 12 was successfully installed, all assets were missing, so the final step was to run this command:

bench update --reset

as this site suggested:

Upgrading to version 12 - Missing CSS 404 not found

Ok so I fixed all that by install yarn/rollup manually. The updates were successful and I am now able to run the following: $bench switch-to-branch version-12 --upgrade $ bench update --patch But the when I try to access the site, it throws the following errors: 404 Not Found : assets/css/frappe-web-b4.css 404 Not Found : /assets/js/bootstrap-4-web.min.js And an error on the console: Uncaught TypeError: $(...).dropdown is not a function at HTMLDocument.<anonymous> (frappe-web.min.js:…

Now, I have this version running in my system:

ERPNext: v12.11.2 (version-12)

Frappe Framework: v12.9.1 (version-12)

Regards
Jaime