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It reveals the errors:
1>first.obj : error LNK2001: unresolved exterior image
“public: virtual void __thiscall first::onKeyPressed(enum cocos2d::EventKeyboard::KeyCode,class cocos2d::Event *)” (?onKeyPressed@first@@UAEXW4KeyCode@EventKeyboard@cocos2d@@PAVEvent@4@@Z)
1>first.obj : error LNK2001: unresolved exterior image
“public: virtual void __thiscall first::onKeyReleased(enum cocos2d::EventKeyboard::KeyCode,class cocos2d::Event *)” (?onKeyReleased@first@@UAEXW4KeyCode@EventKeyboard@cocos2d@@PAVEvent@4@@Z)
1>D:cocos2d-x-3.17testsgame1proj.win32Debug.win32game1.exe : deadly error LNK1120: 2 unresolved exterior instructions
How to resolve?
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