$ php composer.phar install
Installing dependencies from lock file (including require-dev)
Verifying lock file contents can be installed on current platform.
Your lock file does not contain a compatible set of packages. Please run composer update.

Problem 1

- yiisoft/yii2-composer is locked to version 2.0.7 and an update of this package was not requested.
- yiisoft/yii2-composer 2.0.7 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint.

Problem 2

- yiisoft/yii2-composer 2.0.7 requires composer-plugin-api ^1.0 -> found composer-plugin-api[2.0.0] but it does not match the constraint.
- yiisoft/yii2 2.0.17 requires yiisoft/yii2-composer ~2.0.4 -> satisfiable by yiisoft/yii2-composer[2.0.7].
- yiisoft/yii2 is locked to version 2.0.17 and an update of this package was not requested.

Use the option --with-all-dependencies to allow upgrades, downgrades and removals for packages currently locked to specific versions.

You are using Composer 2, which some of your plugins seem to be incompatible with. Make sure you update your plugins or report a plugin-issue to ask them to support Composer 2.

不要再让我看到这种问题！

我只能回答“用过”或者“没用过”。那又有什么意义呢？

你遇到什么问题了直接说出来，大家一起帮你解决！