My app is no longer building. It worked fine last night, I have made some changes this morning, but when I build it I am getting: -
ERROR: Runtime error
unable to generate a unique filename
stack traceback:
C: in function ‘tmpname’
?: in function ‘runScript’
?: in function <?:1009>
iOS build failed (12) after 13 seconds
ERROR: Build Failed: Error code: 12
I can build it on Android fine. Not sure where to look - any ideas?
Just checking, and I am getting the same error from another app that was working fine and has had no code changed. Is this my machine or is it the Build Server?
Is there more to the error in the console log? I’ve not seen any other complaints about build issues.
Rob
Nothing more Rob. I am scratching my head. Getting the same error on all builds. It was working yesterday! Tried it on three separate apps, all of which build for Android (on a Windows PC). Worried it is my MAC, but have ran a disk scan and everything is OK…
I have reinstalled a new copy of Corona. Not sure what else to do… Getting worried…
OK Rob, back working! I updated my MAC to OS Sierra and now the builds are going through (???). Must have been a local issue, but not sure what… Anyway, thanks for looking at it - stand down now… 
Ok. Good. I was going to have you try and build the Hello World sample app, but now that you’ve solved it…
It may have been a permission problem on a temporary directory that the OS upgrade fixed.
Rob
Just checking, and I am getting the same error from another app that was working fine and has had no code changed. Is this my machine or is it the Build Server?
Is there more to the error in the console log? I’ve not seen any other complaints about build issues.
Rob
Nothing more Rob. I am scratching my head. Getting the same error on all builds. It was working yesterday! Tried it on three separate apps, all of which build for Android (on a Windows PC). Worried it is my MAC, but have ran a disk scan and everything is OK…
I have reinstalled a new copy of Corona. Not sure what else to do… Getting worried…
OK Rob, back working! I updated my MAC to OS Sierra and now the builds are going through (???). Must have been a local issue, but not sure what… Anyway, thanks for looking at it - stand down now…
Ok. Good. I was going to have you try and build the Hello World sample app, but now that you’ve solved it…
It may have been a permission problem on a temporary directory that the OS upgrade fixed.
Rob