composer update時報錯：has a broken sugnature

項目使用composer進行包管理，但是進行包升級時報以下錯誤，該怎麼解決？

ubuntu@ubuntu-VGN-SR13-B:~/nginx/coolwifi$ composer selfupdatePHP Fatal error:  Uncaught exception 'PharException' with message 'phar "/usr/local/bin/composer" has a broken signature' in /usr/local/bin/composer:13Stack trace:#0 /usr/local/bin/composer(13): Phar::mapPhar('composer.phar')#1 {main}  thrown in /usr/local/bin/composer on line 13

解決：刪掉/usr/local/bin/composer後，重新下載composer.phar複製進去添加執行許可權後正常

回複內容：

項目使用composer進行包管理，但是進行包升級時報以下錯誤，該怎麼解決？

ubuntu@ubuntu-VGN-SR13-B:~/nginx/coolwifi$ composer selfupdatePHP Fatal error:  Uncaught exception 'PharException' with message 'phar "/usr/local/bin/composer" has a broken signature' in /usr/local/bin/composer:13Stack trace:#0 /usr/local/bin/composer(13): Phar::mapPhar('composer.phar')#1 {main}  thrown in /usr/local/bin/composer on line 13

解決：刪掉/usr/local/bin/composer後，重新下載composer.phar複製進去添加執行許可權後正常

看似許可權不夠，請試試：
> sudo composer self-update
or

> sudo su> composer self-update

似乎需要重新安裝，請查看 issue on github.

