This is whatās in the log:
15-5-18 13:24:27.3|Info|UpdateApp|Starting Sonarr Update Client
15-5-18 13:24:27.4|Info|UpdateApp|Updating Sonarr to version 2.0.0.3146
15-5-18 13:24:27.5|Debug|UpdateApp|NzbDrone process ID: 19522
15-5-18 13:24:27.5|Debug|UpdateApp|Arguments:
15-5-18 13:24:27.5|Debug|UpdateApp| 19522
15-5-18 13:24:27.5|Debug|UpdateApp| /tmp/nzbdrone_update
15-5-18 13:24:27.5|Debug|UpdateApp| /share/CE_CACHEDEV1_DATA/.qpkg/QSonarr/NzbDrone/NzbDrone.exe
15-5-18 13:24:27.5|Debug|UpdateApp|Using executing application: /share/CE_CACHEDEV1_DATA/.qpkg/QSonarr/NzbDrone/NzbDrone.exe
15-5-18 13:24:27.5|Debug|UpdateApp|Executable location: /share/CE_CACHEDEV1_DATA/.qpkg/QSonarr/NzbDrone/NzbDrone.exe
15-5-18 13:24:27.5|Info|UpdateApp|Starting update process. Target Path:/share/CE_CACHEDEV1_DATA/.qpkg/QSonarr/NzbDrone
15-5-18 13:24:27.5|Info|InstallUpdateService|Verifying requirements before updateā¦
15-5-18 13:24:27.5|Debug|ProcessProvider|Finding process with Id:19522
15-5-18 13:24:27.5|Warn|ProcessProvider|Unable to find process with ID 19522
15-5-18 13:24:27.5|Fatal|UpdateApp|An error has occurred while applying update package.
System.ArgumentException: Process with ID doesnāt exist 19522
at NzbDrone.Update.UpdateEngine.InstallUpdateService.Verify (System.String targetFolder, Int32 processId) [0x000c3] in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Update\UpdateEngine\InstallUpdateService.cs:72
at NzbDrone.Update.UpdateEngine.InstallUpdateService.Start (System.String installationFolder, Int32 processId) [0x00000] in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Update\UpdateEngine\InstallUpdateService.cs:76
at NzbDrone.Update.UpdateApp.Start (System.String[] args) [0x00020] in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Update\UpdateApp.cs:59
at NzbDrone.Update.UpdateApp.Main (System.String[] args) [0x00042] in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Update\UpdateApp.cs:43