How to update laravel?

Question

PHP

Good evening! Need to upgrade laravel 5.* project to 8.*. But there are some nuances, the project does not have such files as env, artisan, composer. I added these files, more or less configured, the composer update command was successfully completed. There's just a problem. composer installed vendor in the root of the project when the old version is stored in a completely different folder. it seems like you can set a different path in composer, but in the old version, the sources are adapted to the project structure. That is, the class illuminate\foundation\application has the namespace lib\library\illuminate\foundation\application. can this be fixed somehow?

Answer 1

Easier to manually rewrite everything

Answer 2

How to generate laravel composer.json from a vendo...