应用程序崩溃消息＆＃34;用法：leveldbutil命令...＆＃34;

Question

我使用的是Swift 3和XCode 8.3.3。

我的应用程序在开始之前崩溃，它会打印出来：

Usage: leveldbutil command...
   dump files...         -- dump contents of specified files

然后崩溃了我没有找到解决这个问题的方法。

Answer 1

尝试清理项目并重试。

Answer 2

检查你的AppDelegate并找到@UIApplicationMain 这句话如果没有，那么就像这个

一样放在上面

*Command line python sys.path*
 /Users/alexanderhandy/Documents/Programming/Scripts/usr/local/lib/python2.7/site-packages/setuptools-17.0-py2.7.egg/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python27.zip/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/usr/local/lib/python2.7/site-packages/Library/Python/2.7/site-packages

*plist task python sys.path*
/Users/alexanderhandy/Documents/Programming/Scripts/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/Library/Python/2.7/site-packages