我在调试框架时，碰到了语法错误，但是检查了很多次没有发现哪里有语法问题..报错内容
```
Fatal error: Uncaught PhpParser\Error: Syntax error, unexpected ':', expecting ',' or ']' or ')' on line 45 in /var/www/html/shopify/vendor/nikic/php-parser/lib/PhpParser/ParserAbstract.php:318
Stack trace:
#0 /var/www/html/shopify/vendor/nikic/php-parser/lib/PhpParser/ParserAbstract.php(159): PhpParser\ParserAbstract->doParse()
#1 /var/www/html/shopify/vendor/nikic/php-parser/lib/PhpParser/Parser/Multiple.php(51): PhpParser\ParserAbstract->parse('<?php\r\n/**\r\n * ...', Object(PhpParser\ErrorHandler\Throwing))
#2 /var/www/html/shopify/vendor/nikic/php-parser/lib/PhpParser/Parser/Multiple.php(32): PhpParser\Parser\Multiple->tryParse(Object(PhpParser\Parser\Php7), Object(PhpParser\ErrorHandler\Throwing), '<?php\r\n/**\r\n * ...')
#3 /var/www/html/shopify/vendor/roave/better-reflection/src/SourceLocator/Ast/Parser/MemoizingParser.php(46): PhpParser\Parser\Multiple->parse('<?php\r\n/**\r\n * ...', Object(PhpParser\ErrorHandler\Throwing))
大佬们有遇到过吗，帮忙看看
