仅在 10.7 上找不到符号 _OBJC_IVAR_$_NSView._layer(在 AppKit 中),在 10.8 和 10.9 上工作正常 [英] Symbol not found _OBJC_IVAR_$_NSView._layer (in AppKit) only on 10.7, works fine on 10.8 and 10.9
本文介绍了仅在 10.7 上找不到符号 _OBJC_IVAR_$_NSView._layer(在 AppKit 中),在 10.8 和 10.9 上工作正常的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的 mac cocoa 应用程序在 10.8 和 10.9 上运行良好,但在 10.7(全新安装)上运行时出现此错误:找不到符号:_OBJC_IVAR_$_NSView._layer
My mac cocoa app works fine on 10.8 and 10.9 except on 10.7 (fresh install) with this error at start : Symbol not found: _OBJC_IVAR_$_NSView._layer
Process: xxx [875]
Path: /Users/USER/Desktop/xxx.app/Contents/MacOS/xxx
Identifier: com.xxx.xxx
Version: 1.0 (1)
Code Type: X86-64 (Native)
Parent Process: launchd [127]
Date/Time: 2014-02-13 17:44:24.208 +0100
OS Version: Mac OS X 10.7.5 (11G63)
Report Version: 9
Crashed Thread: 0
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Application Specific Information:
dyld: launch, loading dependent libraries
Dyld Error Message:
Symbol not found: _OBJC_IVAR_$_NSView._layer
Referenced from: /Users/USER/Desktop/xxx.app/Contents/MacOS/xxx
Expected in: /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
in /Users/USER/Desktop/xxx.app/Contents/MacOS/xxx
(xxx = 应用名称)
(xxx = appname)
我查看了系统盘,AppKit框架在/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit目录下是正常的
I checked on system disk, AppKit framework is fine in the forlder /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
很奇怪,不是吗?感谢您的帮助...
Weird, isn't it ? Thank you for any help ...
推荐答案
我通过删除所有代码中的这一行来解决这个问题:
I fixed the issue by remove this lines in all of my code :
//self.layer = _layer; //Not necessary at all
self.wantsLayer = YES; //Necessary since 10.8
非常感谢您的帮助!
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