求助，如何解决该问题

问题描述:

```

message: “syntax error, unexpected identifier “DateTimeZone”, expecting variable”,…}exception: “Symfony\Component\Debug\Exception\FatalThrowableError”file: “C:\cs\abms\abms-api\vendor\lcobucci\clock\src\SystemClock.php”line: 13message: “syntax error, unexpected identifier "DateTimeZone", expecting variable”exception: “Symfony\Component\Debug\Exception\FatalThrowableError”file: “C:\cs\abms\abms-api\vendor\lcobucci\clock\src\SystemClock.php”line: 13message: “syntax error, unexpected identifier "DateTimeZone", expecting variable”