iOS Xcode build fails - 2019.1f4 - "PhaseScriptExecution failed with a nonzero..."

Hello,

Lastly I have really tough time trying to build iOS version of the app, which I did successfully build 1 time on the 2019.1f4 unity version...
Currently I run into the problem when the build fails with error:

"PhaseScriptExecution failed with a nonzero ...."

In the message it's written :

"Please provide an auth token with USYM_UPLOAD_AUTH_TOKEN environment variable"...


I really suck at iOS builds, I'm 99% Android user, just trying to configure the final, build machine for my project so I will not be in need to build manually iOS anymore...

If someone got an idea how to fix it... I would be in dept!