我今天下载了xcode 11，是因为我的手机以某种方式下载了iOS13，因此我需要进行升级以使其连接起来。不幸的是，现在当我尝试在该项目上打开xcode时，它会崩溃。
我觉得我已经尝试了所有读取的内容-删除派生数据，删除xcode并重新下载（甚至再次尝试使用10它将无法打开），删除xcshareddata以及尝试关闭icloud。
不知道还有什么尝试
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
ProductBuildVersion: 10B61
ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEXcode3ProjectSupport/IDEXcode3ProjectSupport-14460.26/Xcode3Core/LegacyProjects/Frameworks/DevToolsCore/DevToolsCore/ProjectModel/DataModel/Containers/PBXContainerItemProxy.m:135
Details: _containerPortal is NULL
Object: <PBXContainerItemProxy: 0x7fe7a3309b00>
Method: -remoteContainer
Thread: <NSThread: 0x7fe79ef019d0>{number = 1, name = main}
Hints:
Backtrace:
0 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in IDEKit)
1 _DVTAssertionHandler (in DVTFoundation)
2 _DVTAssertionFailureHandler (in DVTFoundation)
3 -[PBXContainerItemProxy remoteContainer] (in DevToolsCore)
4 -[PBXContainerItemProxy remoteContainerItem] (in DevToolsCore)
5 -[PBXReferenceProxy sourceTree] (in DevToolsCore)
6 -[PBXReference addNotifications] (in DevToolsCore)
7 -[PBXReference awakeFromPListUnarchiver:] (in DevToolsCore)
8 -[PBXReferenceProxy awakeFromPListUnarchiver:] (in DevToolsCore)
9 -[PBXPListUnarchiver decodeRootObject] (in DevToolsCore)
10 +[PBXProject projectWithFile:errorHandler:readOnly:] (in DevToolsCore)
11 -[PBXFileReference loadedContainer] (in DevToolsCore)
12 -[PBXContainerItemProxy remoteContainer] (in DevToolsCore)
13 -[PBXContainerItemProxy remoteContainerItem] (in DevToolsCore)