Install latest Win 10 SDK if you don’t have (till 2017 April, its version is 15063), Windows 10 should be the matched version:
C:\Program Files (x86)\Windows Kits\10\App Certification Kit>appcert test -appxpackagepath C:\Projects\app.appx -reportoutputpath C:\Output\MyReport.xml
The MyReport.xml contains test result and you can follow it to fix known issues. Digitally signed file test, File association verbs, Debug configuration test are optional.
For more details, refer to: