格式返回请求: public function send_test(Request $request) return $request;
} 结果,我得到了这个错误消息:type'Teams' is not a subtype of type 'int' in type cast,我该如何解决这个问题?
当我试图将一个字符串转换成一个整数时,我收到了这个错误d[ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: type 'String' is not a subtype of type 'int' in type cast。element.data().values.elementAt(4) // the element at this
= null)Exception: Uncaught Error: type 'double' is not a subtype of type 'String' of 'value'.= null).toStringAsFixed(2)Exception: Uncaught Error: type 'int' is not a subtype of
, module, type or union case nameAny sequence of characters that is enclosed in double-backtick-- variable type long-ident<types> -- named type, such as list<int>