c++ - Cocos2d-x-clang : error: linker command failed with exit code 1 (use -v to see invocation)

Question

我在 Cocos2d-x (2.1.5) 中收到来自“Cocos2d-x 初学者指南”一书中的教程(空中曲棍球)时收到这些消息。

我已经检查了 Xcode 中的所有“#include”、BuildPhases 等，并在“编译源”(大约 250 个文件)中执行了“验证设置”，并筛选了互联网，非常感谢任何人对此的看法。我还没有在 .cpp 文件中引用它们。

顺便说一句，书上的Cocos2d-x版本和我用的不一样，我查了书网，从作者那里找到的:the Authors comment on the releases for the tutorial(s)

这是我第一次尝试使用非 Objective-C 和 Cocos2d-x。

GameLayer.h:

#ifndef __GAMELAYER_H__
#define __GAMELAYER_H__

#define GOAL_WIDTH 400

#include "cocos2d.h"
#include "GameSprite.h"

using namespace cocos2d;

class GameLayer : public cocos2d::CCLayer {

GameSprite  *_player1;
GameSprite  *_player2;
GameSprite  *_ball;

CCArray     *_players;
CCLabelTTF  *_player1ScoreLabel;
CCLabelTTF  *_player2ScoreLabel;

CCSize      _screenSize;

int _player1Score;
int _player2Score;

void playerScore (int player);

public:

~GameLayer();

virtual bool init();

static CCScene *scene();

CREATE_FUNC(GameLayer);

virtual void ccTouchesBegan(CCSet* pTouches, CCEvent* event);
virtual void ccTouchesMoved(CCSet* pTouches, CCEvent* event);
virtual void ccTouchesEnded(CCSet* pTouches, CCEvent* event);

void update (float dt);

};

#endif // __GAMELAYER_H__

消息:

clang: warning: argument unused during compilation: '-websockets'
Undefined symbols for architecture i386:
  "GameLayer::ccTouchesBegan(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
  "GameLayer::ccTouchesEnded(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
  "GameLayer::ccTouchesMoved(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
  "GameLayer::update(float)", referenced from:
  vtable for GameLayer in GameLayer.o
  "non-virtual thunk to GameLayer::ccTouchesBegan(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
  "non-virtual thunk to GameLayer::ccTouchesEnded(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
  "non-virtual thunk to GameLayer::ccTouchesMoved(cocos2d::CCSet*, cocos2d::CCEvent*)", referenced from:
  vtable for GameLayer in GameLayer.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

您没有在 GameLayer.ccp 中实现这些功能。按照本教程，它将教您如何实现它们。