升级玩1.7 bug太多降回版本1.61运行黑屏，怎么处理求大神解答

Creator 2.x
#1

Simulator: WORKAREA WIDTH 1920.00, HEIGHT 955.00
Simulator: FRAME SCALE = 1.00
Simulator: GLFWError #65544 Happen, Cocoa: Failed to retrieve display name
Simulator:
Simulator: {
Simulator: gl.supports_OES_map_buffer: false
Simulator: gl.supports_vertex_array_object: true
Simulator: cocos2d.x.version: 1.6.1
Simulator: gl.vendor: ATI Technologies Inc.
Simulator: gl.supports_PVRTC: false
Simulator: gl.renderer: AMD Radeon HD 6750M OpenGL Engine

#2

Simulator: /Users/a606/Desktop/606joy_client/temp/quick-scripts/assets/scripts/manager/VoiceMgr.js:215:unreachable code after return statement
Simulator: /Users/a606/Desktop/606joy_client/temp/quick-scripts/assets/scripts/ui/UILoginPanel.js:100:unreachable code after return statement