Hi, 

Please can someone can help me with this, look that is successful, but then I got an error and don`t know why. 

Starting SFDX: Set a Default Org
sfdx force:config:set defaultusername=https://um5.lightning.force.com/lightning/setup/SetupOneHome/home,Dev,DevHub,https://um5.lightning.force.com/lightning/page/home
=== Set Config
Name             Value                                                                                                                             Success
───────────────  ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────  ───────
defaultusername  https://um5.lightning.force.com/lightning/setup/SetupOneHome/home,Dev,DevHub,https://um5.lightning.force.com/lightning/page/home  false

ERROR running config:set:  No AuthInfo found for name https://um5.lightning.force.com/lightning/setup/SetupOneHome/home,Dev,DevHub,https://um5.lightning.force.com/lightning/page/home

sfdx force:config:set defaultusername=https://um5.lightning.force.com/lightning/setup/SetupOneHome/home,Dev,DevHub,https://um5.lightning.force.com/lightning/page/home
 ended with exit code 1


Many thanks, 
Iulian