composer install的时候遇到这些问题，已经删除composer.lock文件但还是这样

[xiebruce]

Problem 1

• Installation request for anruence/yii2-editor.md dev-master -> satisfiable by anruence/yii2-editor.md[dev-master].
• anruence/yii2-editor.md dev-master requires bower-asset/editor.md * -> no matching package found. Problem 2
• yiisoft/yii2 dev-master requires bower-asset/punycode 1.3.* -> no matching package found.
• yiisoft/yii2 2.0.x-dev requires bower-asset/punycode 1.3.* -> no matching package found.
• yiisoft/yii2 2.0.9 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.8 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.*@stable -> no matching package found.
• yiisoft/yii2 2.0.7 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.*@stable -> no matching package found.
• yiisoft/yii2 2.0.6 requires bower-asset/jquery 2.1.@stable | 1.11.@stable -> no matching package found.
• yiisoft/yii2 2.0.13.1 requires bower-asset/jquery 3.2.@stable | 3.1.@stable | 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.13 requires bower-asset/jquery 3.2.@stable | 3.1.@stable | 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.12 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.11.2 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.11.1 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.11 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• yiisoft/yii2 2.0.10 requires bower-asset/jquery 2.2.@stable | 2.1.@stable | 1.11.@stable | 1.12.@stable -> no matching package found.
• nullref/yii2-useful dev-master requires yiisoft/yii2 >=2.0.6 -> satisfiable by yiisoft/yii2[2.0.10, 2.0.11, 2.0.11.1, 2.0.11.2, 2.0.12, 2.0.13, 2.0.13.1, 2.0.6, 2.0.7, 2.0.8, 2.0.9, dev-master, 2.0.x-dev].
• Installation request for nullref/yii2-useful dev-master -> satisfiable by nullref/yii2-useful[dev-master].

Potential causes:

• A typo in the package name
• The package is not available in a stable-enough version according to your minimum-stability setting see https://getcomposer.org/doc/04-schema.md#minimum-stability for more details.
• It's a private package and you forgot to add a custom repository to find it

[itswuanran]

yii2框架安装时，需要composer先安装"fxp/composer-asset-plugin"，执行下面命令试试吧。 composer global require fxp/composer-asset-plugin

[xiebruce]

@anruence 这个fxp/composer-asset-plugin我已经安装过的

[itswuanran]

@xiebruce 试着把fxp/composer-asset-plugin升级到最新版本