Visual studio has the ability to package your uwp app:
After following some steps you should end up with a folder:
If for some reason your appinstaller goes wrong like mine:
Basically saying that something went wrong.
Go into your debug_test folder:
And run the Install.ps1. This will give you the error on why the package was not able to install.
If you have certificate issue’s it’s important to install the certificate that you can see in the folder and click on local machine (you’ll need admin rights):
Then the important step! Select Place all certificates in the following store and pick ‘Trusted Root certification authorities’:
Install it and boom! Your error should be gonne!
Happy programming!