FYI, we answered this question via email. Find our answer below:
The message "
Deployment ended: This installation package could not be opened. Verify that the package exists and that you can access it..." indicates that either the path to your installer MSI is wrong or the MSI is corrupt or not present.
We generally recommend that you test each step of a deployment package manually on an affected machine if possible using the same account under which you are deploying.
- First perform the initial steps which were running successfully
- Copy the Result Command of the failed deployment package step
- Replace {PackageShare} with the exact path defined under Deployment\Security options
- Paste the command into a cmd.exe on an example target machine and run it.
This will help you to find the cause of the issue.