提示file not found “extensions/coocs-ext.h”
還記得2年前初次碰到這類問題，慌得要死
現在就是小菜一疊
上網查查，

說缺了配置extensions

解決方案就是jni/android.mk
把需要的庫放出來
static library和import都要放出來（刪除行前面的 “#”）

# LOCAL_WHOLE_STATIC_LIBRARIES += cocosbuilder_static
# LOCAL_WHOLE_STATIC_LIBRARIES += spine_static
# LOCAL_WHOLE_STATIC_LIBRARIES += cocostudio_static
 

# LOCAL_WHOLE_STATIC_LIBRARIES += cocos_network_static
LOCAL_WHOLE_STATIC_LIBRARIES += cocos_extension_static


include $(BUILD_SHARED_LIBRARY)

$(call import-module,.)
$(call import-module,audio/android)

# $(call import-module,Box2D)
# $(call import-module,editor-support/cocosbuilder)
# $(call import-module,editor-support/spine)
 

# $(call import-module,editor-support/cocostudio)
# $(call import-module,network)
$(call import-module,extensions)

還少了cocostudio

提示cocos2d:ui:checkbox沒有，由於ui:checkbox 是cocostudio的控制元件，所以要把cocostudio也放出來

undefined reference to ‘vtable for ‘

虛擬函式少了，{}