Ready API Test Runner Failed to load project but runs fine when I Launch Test Runner from GUI

To run ready API tests in a CI pipeline, I want to be able to trigger it from the command line. To do this, I select the test suite and select Launch Test Runner from the menu. When I make the configurations and click on Launch Tests, it works fine. But I get the following errors when I copy the command to the clipboard and run it in the terminal: 

com.eviware.soapui.support.SoapUIException: Failed to load project from file [file:/Users/alitariq/Desktop/ReadyAPI%20Projects/]

the full log can be seen in the attached file