composer 错误收集
mac 执行 composer selfupdate 报错 ： [Composer\Downloader\FilesystemException]
Filesystem exception:
Composer update failed: "/usr/local/bin/composer" could not be written.
rename(/Users/xx/.composer/cache/composer-temp.phar,/usr/local/bin/composer): Permission denied
1.更新sudo composer self-update
2.手动更新 Composer：
sudo mv ~/.composer/cache/composer-temp.phar /usr/local/bin/composer
3.检查权限问题
sudo chown -R $(whoami) /usr/local/bin
