I Installed B4i v5.81 and v5.8 of the Build Server on my Mac. Everything works fine when I use the HOSTED build server. However when I use the LOCAL build server, I get the following error: .
SOLVED!! I had to do a few things to solve this issue which I am documenting here in case someone else has a similar problem:
1. Go to XCODE -> Preferences -> Accounts and add your developer account.
You need to do this if you have just installed a fresh copy of XCODE or are installing on a new MAC computer. Which was my case.
2. I then had to Enable the B4I certificate on my device since I was now using the LOCAL builder and not the HOSTED builder.
Settings -> General -> About -> Certificate Trust Settings
3. And finally, Stupid Me, I forgot to update the Libs folder on the MAC with the Google Maps Framework. My App uses Google Maps and this is required for compilation. See Step 2 of the B4I GoogleMaps Tutorial.
After doing all of the above, the LOCAL builder works just fine and I can compile and simulate my App on the MAC.