What should I do if composer fails to install yii?

1. Use composer country image

Global configuration:

composer config -g repo.packagist composer https://packagist.phpcomposer.com

Individual project configuration:

composer config repo.packagist composer https://packagist.phpcomposer.com

Recommended tutorial:yii framework

2. Delete the default warehouse configuration in composer.json

3. Solve the bower dependency

composer require yidas/yii2-bower-asset

Then we saw that the dependencies started to be installed. The main reason for composer installation failure was that the default warehouse access was very slow. If we directly use the national image, we need to solve the bower dependency.

4. Modify bower configuration: config/web.php, point the alias to @vendor/yidas/yii2-bower-asset/bower

If there is no configuration key, you need to add a key in config/web.php

'components' => [ 'request' => [ // !!! insert a secret key in the following (if it is empty) - this is required by cookie validation 'cookieValidationKey' => 'your-key', ], ... ]

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