I have a problem with
Uncaught (in promise) Error: Fetching outdated packages and themes failed.
at C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:11:938805
at r (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:11:936821)
at n (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:14:1125047)
at ChildProcess.o.process.on.e (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:14:1125253)
at ChildProcess.emit (events.js:182:13)
at Process.ChildProcess._handle.onexit (internal/child_process.js:240:12)
Seems like you can't download packages from atom.io -- that's probably a problem with your internet connection or firewall. In any case, it doesn't seem to be related to Juno at all.
I have a problem with Uncaught (in promise) Error: Fetching outdated packages and themes failed. at C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:11:938805
at r (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:11:936821)
at n (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:14:1125047)
at ChildProcess.o.process.on.e (C:\Users\User\AppData\Local\atom\app-1.45.0\resources\app\static\:14:1125253)
at ChildProcess.emit (events.js:182:13)
at Process.ChildProcess._handle.onexit (internal/child_process.js:240:12)