Description: Failure reason of installing a set or package, description as follows: success: Success. unknownErr: Unknown error. noMem: No enough memory. pending: Pending. executing: Executing. cmdNotFinish: Can not process this command because other command is conflicted. noSpace: No enough free space on system disk. notFound: The file does not exist. pkgExist: The file already exists. pkgNameConflict: Can not operate packages with the same name. inputError: The string of input is wrong. urlError: The format of parameter is error. usrpwdError: User name or password is incorrect. pkgHandleError: Invalid package handle. fileFormatError: Invalid file format. downloadFailed: Download file failed. fileExist: The file already exists. fileNotExist: The file does not exist. vrfError: Invalid VRF name. ipOrPortError: Destination IP or port is unreachable. noMatchPlatform: The package cannot be applied to the current platform. nameLong: The path or file name is too long. copyFailed: Copying file failed. abort: Abort. noMoreSqu: Can not add more than 7 SQUASH packages or sets. existSameVersionPackage: There is a same version of package in the system. waitingFileSyncTimeout: Waiting for file synchronization timeout. digitalCertificateInvalid: Invalid digital certificate. digitalSignNotExist: No digital signature. digitalSignVerificationFailed: Digital signature verification failed.