I actually have the same problem
- I had an old version of the gateway I had to uninstall because PBI Desktop wouldn't launch anymore
- I had to uninstall Microsoft Data Management Gateway as explained in the following link :
=> Now I can launch PBI Desktop
BUT
- I have downlowded the last version of the PBI Personnal getway from the main page of the online app
- At the end of the (sucessfull) installation process, I click on "Launch" but nothing happens
- When I launch PBI Personnal Gateway manually, I find this message : wait while we are checking additionnal data / sequence contains no elements. Clicking on "following" won't do anything
Can you please help ?