Launch to iPhone FAILED

I am unable to launch to iPhone 6S, following the steps in this video.

I am using UE4.19.0, Xcode_9.3_beta_4.

Attached is the Output Log. Notably, the following is called out in red -
FYI, I have little coding experience.

link text

LogPlayLevel: [DD] … Error: Failed to connect to bundle ‘3D.Art.FishARDemo’

LogPlayLevel: 2 DTDeviceKitBase 0x0000000112761afa -[DTDKMobileDeviceToken mountDeveloperDiskImage:withError:] + 774
LogPlayLevel: 3 DTDeviceKitBase 0x00000001127623b0 -[DTDKMobileDeviceToken mountDeveloperDiskImageWithError:] + 479

PlayLevel: 2 DTDeviceKitBase 0x0000000112761afa -[DTDKMobileDeviceToken mountDeveloperDiskImage:withError:] + 774
LogPlayLevel: 3 DTDeviceKitBase 0x00000001127623b0 -[DTDKMobileDeviceToken mountDeveloperDiskImageWithError:] + 479

PlayLevel: ERROR: Command failed (Result:1): /Users/Shared/Epic Games/UE_4.19/Engine/Binaries/DotNET/IOS/DeploymentServer.exe Install -ipa “/Users/Alex/Desktop/FishAR/FishAR_2/FishAR_2/Binaries/IOS/FishAR_2.ipa” -device 76be975ec8579a70a8d013895e72f1c1ac9059be -additionalcommandline "-SessionId=C740C1B1E24FB70C4D9E7DA4215A2379 -SessionOwner=“Alex” -Sessio
nName=“Launch On Device” ". See logfile for details: ‘DeploymentServer-2018.03.24-12.20.44.txt’

PlayLevel: RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults: Error: Launch failed! Unknown Error