Developing on two separate mac computers

Are there any limitations with developing on two separate mac computers. I have a macBook and an iMac. The macbook is running XCode 7.2.1 and the iMac is running XCode 10.3. I have inherited a mobile app and I am trying to learn and upgrade the code to a later version of Xcode.


I have been running into several code signing issues when I try and build / distribute the app. I get errors that it couldn't find the signing certificate, the provisioning profile, etc. Lots of errors ...


Biggest questions:

1.) What should I avoid doing that will screw up the existing production app? Don't mess with anything production.

- this includes production certificates and production provisioning profiles

2.) how to fix the existing build issues so that I can deploy a test app?

Note there is no Xcode 10.3 - the latest Xcode is 8.3.2...


Can you explain again what the two computers have to do with this?

Developing on two separate mac computers
 
 
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