出現xcodebuild的生成錯誤時，可能原因是以下原因（請查看後面的錯誤提示是否與你的情況相同）：
IOS升級之後，在https://developer.apple.com後臺看你的證書，有可能是Invalid（無效的），雙擊證書，重新編輯生
成後，再到項目生成即可
錯誤信息：
PAlient Error] Error: E0776 2018-11-12 11:11:39.405 xcodebuild[479:16233] [MT] IDEDistribution: -[IDEDistributionLogging _createLoggingBundleAtPath:]: Created bundle at path '/var/folders/p0/3_2fqb693q160pd43g0z423w0000gn/T/EversheetMultiDevice_2018-11-12_11-11-39.404.xcdistributionlogs'.
[PAClient Error] Error: E0776 2018-11-12 11:11:39.955 xcodebuild[479:16233] [MT] IDEDistribution: Step failed: <IDEDistributionSigningAssetsStep: 0x7fe752f51070>: Error Domain=IDEDistributionSigningAssetStepErrorDomain Code=0 "Locating signing assets failed." UserInfo={NSLocalizedDescription=Locating signing assets failed., IDEDistributionSigningAssetStepUnderlyingErrors=(
[PAClient Error] Error: E0776 "Error Domain=IDEProfileQualificationErrorDomain Code=5 \"Provisioning profile \"Eversheet IOS\" doesn't include signing certificate \"iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)\".\" UserInfo={NSLocalizedDescription=Provisioning profile \"Eversheet IOS\" doesn't include signing certificate \"iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)\"., IDEProfileQualificationError_IncludedCerts=(\n \"<DVTSigningCertificate: 0x7fe752eb7e70; name='iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)', hash='F884F9210C67783A399D330B3BEF179FC8264C2A', serialNumber='5E15A2267C84C190', certificateKind='1.2.840.113635.100.6.1.4, issueDate='2018-06-20 19:39:24 +0000''>\"\n), IDEProfileQualificationError_MissingCerts={(\n <DVTSigningCertificate: 0x7fe7505aa3a0; name='iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)', hash='D1433F07CDDD4C43E73F807C77626208CADE4368', serialNumber='246B331E4E1EE193', certificateKind='1.2.840.113635.100.6.1.4, issueDate='2018-11-12 02:29:36 +0000''>\n)}, IDEProfileQualificationError_Profile=<DTDKProvisioningProfile 0x7fe752f5c9d0: UUID: 9248a628-0dc6-40af-afb3-dbde9e87a05c, name: Eversheet IOS, team: X9YTD7AQPQ (Zhuhai Lato Software Co., Ltd.), platform: iOS>}"
[PAClient Error] Error: E0776 )}
[PAClient Error] Error: E0776 error: exportArchive: Provisioning profile "Eversheet IOS" doesn't include signing certificate "iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)".
[PAClient Error] Error: E0776 Error Domain=IDEProfileQualificationErrorDomain Code=5 "Provisioning profile "Eversheet IOS" doesn't include signing certificate "iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)"." UserInfo={NSLocalizedDescription=Provisioning profile "Eversheet IOS" doesn't include signing certificate "iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)"., IDEProfileQualificationError_IncludedCerts=(
[PAClient Error] Error: E0776 "<DVTSigningCertificate: 0x7fe752eb7e70; name='iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)', hash='F884F9210C67783A399D330B3BEF179FC8264C2A', serialNumber='5E15A2267C84C190', certificateKind='1.2.840.113635.100.6.1.4, issueDate='2018-06-20 19:39:24 +0000''>"
[PAClient Error] Error: E0776 ), IDEProfileQualificationError_MissingCerts={(
[PAClient Error] Error: E0776 <DVTSigningCertificate: 0x7fe7505aa3a0; name='iPhone Distribution: Zhuhai Lato Software Co., Ltd. (X9YTD7AQPQ)', hash='D1433F07CDDD4C43E73F807C77626208CADE4368', serialNumber='246B331E4E1EE193', certificateKind='1.2.840.113635.100.6.1.4, issueDate='2018-11-12 02:29:36 +0000''>
[PAClient Error] Error: E0776 )}, IDEProfileQualificationError_Profile=<DTDKProvisioningProfile 0x7fe752f5c9d0: UUID: 9248a628-0dc6-40af-afb3-dbde9e87a05c, name: Eversheet IOS, team: X9YTD7AQPQ (Zhuhai Lato Software Co., Ltd.), platform: iOS>}
[PAClient Error] Error: E0776 ** EXPORT FAILED **