Why do I get an error when deploying an app from the External catalog in Patch My PC Cloud?

Applies to: Patch My PC Cloud

SYMPTOMS

I am trying to deploy an app from the External catalog in Patch My PC (PMPC) Cloud.

But when I click on the Deploy button I get an error.

CAUSE

This could be for a number of reasons as detailed below.

RESOLUTION

There are various reasons that deploying an app from the External catalog can fail:

Error Notification	Generated when the...
External installer file could not be found.	metadata for the installer is missing in the WinGet database.
App version from external source could not be found.	metadata for the version of the application is missing from the WinGet database.
Installer version from external source could not be found.	metadata for the version of the installer is missing from the WinGet database.
External installer file could not be verified and may be corrupted.	hash verification for the installer file fails.
External installer file could not be downloaded.	installer cannot be downloaded or uploaded to blob storage (general error).