qt - LNK2019 __declspec(dllimport), __cdecl issue

Question

Note: This is the first part of my problem.

I don't know how this problem occurred, but it came as two errors:

main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl cm::controllers::MasterController::MasterController(class QObject *)" (__imp_??0MasterController@controllers@cm@@QEAA@PEAVQObject@@@Z) referenced in function main

and

main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __cdecl cm::controllers::MasterController::~MasterController(void)" (__imp_??1MasterController@controllers@cm@@UEAA@XZ) referenced in function main

I'm using Qt Creator 5.12, by the way. I have a feeling it has something to do with the linker.

question from:https://stackoverflow.com/questions/65643450/lnk2019-declspecdllimport-cdecl-issue

Answer 1

Waitting for answers