所以有很多这样的线程，但没有答案对我有用。所以，我正在使用Xcode 4.2和单视图应用程序，启用了故事板。它给了我sigabrt错误！
我正在制作各种计算器，名为Cool calc。
转到http://pastebin.com/awmizYJQ我的.H和.M INFO
在我的输出中出现
GNU gdb 6.3.50-20050815 (Apple version gdb-1708) (Mon Aug 8 20:32:45 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin".Attaching to process 1185.
2012-06-20 14:11:37.556 storyboardcoolcalc[1185:f803] Applications are expected to have a root view controller at the end of application launch
编辑：我忘了添加最重要的信息..... sigabart信息可在 imgur.com/yzCSS