PHP Fatal error:  Uncaught Error: Class 'think\exception\ThrowableError' not found in D:\wwwroot\yjyweb\wwwroot\thinkphp\library\think\Error.php:48
Stack trace:
#0 [internal function]: think\Error::appException(Object(Error))
#1 {main}
  thrown in D:\wwwroot\yjyweb\wwwroot\thinkphp\library\think\Error.php on line 48
PHP Fatal error:  Uncaught Error: Class 'think\exception\ErrorException' not found in D:\wwwroot\yjyweb\wwwroot\thinkphp\library\think\Error.php:88
Stack trace:
#0 [internal function]: think\Error::appShutdown()
#1 {main}
  thrown in D:\wwwroot\yjyweb\wwwroot\thinkphp\library\think\Error.php on line 88