Flutter reports an error type 'Int' is not a subtype of type 'string' wonderful experience

problem

Today, suddenly this code message int transformation string error , And the error code is actually if Code for comparing values ？

type 'int' is not a subtype of type 'String'

And I clearly use dynamic Data type , Then I'll send a message int It should be able to compare ？

solve

I found many things on the Internet that are different from my situation , It took more than an hour , The discovery is of this class get The return value of the statement …
So I use this class json The script is automatically generated , And then put it's _value The type of this attribute is changed to dynamic, however get Method still returns string, While using object .xxx When you use the privatized attribute, you will automatically call get Method , The return value is string, And I define it as dynamic（ Any type ）, What's coming in is int,dart in int Can't automatically convert to string, So report a mistake , Just put get The return value of the method is changed to dynamic that will do