ios打包报错，都不知道去哪里找问题……

2019-03-04 14:22:03.228 xcodebuild[6312:45404] [MT] DVTAssertions: ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEXcode3ProjectSupport/IDEXcode3ProjectSupport-14460.26/Xcode3Core/LegacyProjects/Frameworks/DevToolsCore/DevToolsCore/Foundation/Specifications/XCSpecification.m:1520
Details: propertyList should be an instance inheriting from TSPropertyListDictionary, but it is nil
Object:
Method: -loadedSpecification
Thread: {number = 1, name = main}
Hints:

Backtrace:
0 -[DVTAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in DVTFoundation)
1 _DVTAssertionHandler (in DVTFoundation)
2 _DVTAssertionFailureHandler (in DVTFoundation)
3 -[XCSpecificationProxy loadedSpecification] (in DevToolsCore)
4 +[XCSpecification specificationForIdentifier:inDomain:] (in DevToolsCore)
5 -[XCCommandLineToolSpecification_FileTypeAcceptanceInfo initWithPropertyListDictionary:forToolSpecification:] (in DevToolsCore)
6 -[XCCommandLineToolSpecification_FileTypeAcceptanceInfo initWithFileTypeIdentifier:forToolSpecification:] (in DevToolsCore)
7 -[XCCommandLineToolSpecification initWithPropertyListDictionary:inDomain:] (in DevToolsCore)
8 -[XCLinkerSpecification initWithPropertyListDictionary:inDomain:] (in DevToolsCore)
9 -[XCSpecificationProxy loadedSpecification] (in DevToolsCore)
10 +[XCSpecification specificationForIdentifier:inDomain:] (in DevToolsCore)
11 -[XCSpecificationProxy loadedSpecification] (in DevToolsCore)
12 58-[XCSDKPackage createCommandLineToolSpecificationRegistry]_block_invoke (in DevToolsCore)
13 79+[XCSpecification enumerateSpecificationsInDomain:includingDefault:usingBlock:]_block_invoke (in DevToolsCore)
14 __202+[XCSpecification _recursivelyEnumerateSpecificationsInStartDomain:currentDomain:registryNameOrNil:specificationIdentifierOrNil:alreadyEnumeratedDomains:alreadyEnumeratedIdentifiers:stopPtr:usingBlock:]_block_invoke (in DevToolsCore)
15 202+[XCSpecification _recursivelyEnumerateSpecificationsInStartDomain:currentDomain:registryNameOrNil:specificationIdentifierOrNil:alreadyEnumeratedDomains:alreadyEnumeratedIdentifiers:stopPtr:usingBlock:]_block_invoke_2 (in DevToolsCore)
16 -[NSDictionaryM enumerateKeysAndObjectsWithOptions:usingBlock:] (in CoreFoundation)
17 __202+[XCSpecification _recursivelyEnumerateSpecificationsInStartDomain:currentDomain:registryNameOrNil:specificationIdentifierOrNil:alreadyEnumeratedDomains:alreadyEnumeratedIdentifiers:stopPtr:usingBlock:]_block_invoke.57 (in DevToolsCore)
18 +[XCSpecification _recursivelyEnumerateSpecificationsInStartDomain:currentDomain:registryNameOrNil:specificationIdentifierOrNil:alreadyEnumeratedDomains:alreadyEnumeratedIdentifiers:stopPtr:usingBlock:] (in DevToolsCore)
19 +[XCSpecification _enumerateAllSpecificationsInDomain:registryNameOrNil:specificationIdentifierOrNil:includingDefault:usingBlock:] (in DevToolsCore)
20 +[XCSpecification enumerateSpecificationsInDomain:includingDefault:usingBlock:] (in DevToolsCore)
21 -[XCSDKPackage createCommandLineToolSpecificationRegistry] (in DevToolsCore)
22 -[XCPlatformSpecification loadSpecificationsAndPlugins] (in DevToolsCore)
23 +[XCPlatformSpecification loadAllPlatforms] (in DevToolsCore)
24 XCInitializeCoreIfNeeded (in DevToolsCore)
25 +[Xcode3CoreInitializer ide_initializeWithOptions:error:] (in Xcode3Core)
26 _IDEInitializeBuildSystem (in IDEFoundation)
27 IDEInitialize (in IDEFoundation)
28 -[Xcode3CommandLineBuildTool run] (in Xcode3Core)
29 main (in xcodebuild)
30 start (in libdyld.dylib)

请提供应用的appid（manifest.json文件中的id字段值）