Why is Yii2 homepage not working?

Question

Yii

I installed Yii2 in the folder "xampp/htdocs/mybasic" , I want to open the page localhost/mybasic/web , but I get these errors:

(and at the end of the errors data about cookies and session)
I don't understand: I haven't managed to do anything yet...

Answer 1

Goodnight.
Faced this problem

Answer 2

Most likely you already had errors at the stage composer update
Most likely there is no fxp plugin for pulling bower dependencies. There are options

composer global require "fxp/composer-asset-plugin:~1.3"
composer update

and switch to Aset Packagist
https://asset-packagist.org/

Answer 3

The vendor/bower/jquery/dist folder does not exist.
Most likely, instead of the bower folder, you have a bower_components or bower-asset folder there