a header file is locked and can't edited after I compile my project.

[Lykurg]

let me guess, you have something like

list myList;

list myList;

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in your code, but you have to write

list<PutHereTheTypeYouWant> myList;
//Example
list<int> myIntList;

list<PutHereTheTypeYouWant> myList;
//Example
list<int> myIntList;

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