Problem upgrading from 6.0.10 to 6.1.1

[diyoyo]

Hi,
last week I tried to upgrade from 5.9.4 to 6.0.10 and then to 6.1.1.
Yet, through CLI, I got the message "cannot detect current version".
So I went for the web interface, ie the "not recommended way".
upgrading to 6.0.10 was ok.
Then, It took a very long time and eventually failed.

I thought I hadn't set up a long enough max_timeout, so I increased it and tested the upgrade on another instance of EspoCRM that I have.
It failed similarly.

Now, they both display the following error:

Warning: require_once(vendor/autoload.php): failed to open stream: No such file or directory in bootstrap.p hp on line 33

Is it possible to correct something to make it work? Or should I just restore the backups? Is the db affected? Do I need to restore it too?

Also, why did I get the "cannot detect current version" in the first place?

Thanks for your help.

[item]

Hello,
permission issue, correct permission first !
version is in /data/config.php (you can change it just for re-upgrade )

after that ...
command line on root of espoCRM

php rebuild.php
php command.php upgrade
php rebuild.php

and soo

took many time because many changement with v6 .. rebuild.php adapt your database !
if many record, many time used by rebuild.php

it's my experiment