composer 在thinkphp5下安装easywechat 报错composer Failed to enable crypto failed to open stream: operation failed

composer installed in thinkphp5 easywechat error 
Failed to enable Crypto 
failed The Open Stream to: Operation failed The 

solution, change Packagist for domestic mirror, do not know will not affect subsequent operations, now is it anyway: 
composer config - G repo . Composer HTTPS packagist : //packagist.phpcomposer.com 

then install

composer require overtrue/wechat:~4.0 -vvv