Perspective session launch problem

while launching perspective view showing this error. pls help me to sort it out

[details=“Summary”]

Not something I have seen - can you post the full error message (stack)?

This is error message i am getting while launch url in perspective

Detailed error message:!

Ok, so it’s failing when trying to launch a session, not in the designer itself.

I have not seen that issue. In asking some of our devs that use Windows, they suggested checking to see if you have a default browser set in the operating system.

I assume that visiting the url directly by entering it into your browser is working correctly?