iOS Build Environment Help Center
• Windows 21H2
• Builder: 3.50.1
• iOS SDK: 16.0
Can't compile files built from Unity. Code Errors occur immediately as following.
Same project files worked in Previous iOS 15 sdk.
New blank Unity project also has the same errors too.
THKs!
---------------------------------------
Hello
Okay. Looks like a compiler upgrade is necessary with this new SDK. I'll be working on it in the next days and publish an update. In the meantime please use the iOS 15 SDK if your project allows it.
Update: just baked a clang 14 from Apple's GitHub with some patches, the first test with the iOS 16 SDK showed an issue with temporary file renaming. But it's a known one. Patching was done, rebuilding now (it takes a few hours usually).
Version 3.51 with Clang 14 which supports the new syntax used in the iOS 16 SDK is out. Let me know if it builds your project correctly.
Thanks for your work!
I had the 'renaming' issue you mentioned which is described like
error: unable to rename temporary '' to output file 'build\Release-iphoneos\UnityFramework\arm64\.\Libraries\Il2CppOptions.cpp.obj': 'permission denied'
builder Version is 3.51, SKD is 16.0.
Maybe the same issue fixed on 3.50.1?
That shouldn’t happen. Have you rebuilt your project thoroughly by ticking the rebuild all checkbox ?
This post was deleted by its owner
I have a same issue
error: unable to rename temporary '' to output file 'build\Default\arm64\AppDelegate.m.obj': 'permission denied'
builder Version is 3.51, SDK is 16.0
Thank you :)
Okay, I'm rebuilding with a different workaround. I'm unable to reproduce the problem on Windows 7 so I guess it's a Windows 10 specific one. I'll try to test it in a VM and publish a hotfix ASAP.
I've done my tests on Windows 7 and Windows 11 and the problem doesn't appear. I don't have a Windows 10 VM currently set up but I suppose it'll behave identically as Windows 11.
I've just published the hotfix as version 3.51.1, let me know if it fixes the problem please ?
I had this initial issue. Unfortunately I didn't have the chance to try the build in between, but the latest one works for me on Windows 10.
Thanks for all the hard work <3
Glad to hear it.
Happy building !
HI there,
I've just updated to 3.51.1, with SDK 16.0, and am attempting to build on Windows 10 Build 19044. With the latest toolset I get intermittent compilation failures for no apparent reason.
We use ninja as our build system and it looks like clang.exe is intermittently returning a failure exit code with no corresponding error message from clang. If I restart the build then it seems to pick up where it left off and continues.
I think the issue might be related to parallel compilation jobs running. If I disable that in our build then it seems to work. I tried running Process Monitor (https://learn.microsoft.com/en-us/sysinternals/downloads/procmon) to monitor for issues with clang++.exe and clang.exe but if that's running then it appears to work as well. As it is monitoring the system events, maybe that's making a difference to the timing.
Looking at the release notes you wrote for the hotfix, could there be an issue with multiple processes running and temporary files?
Graeme
Yes, there's an issue with temporary files. The current implementation isn't quite right for all Windows variants. Currently the delete-on-close mechanism is disabled and if the temporary Clang output file can't be renamed into the final object file, it is copied instead and the source temp file is deleted (but no verification is made that the deletion succeeded, and there may be a race condition here that could explain the random errors you get).
It was a "hot" fix really, and I'm doing it more properly. BTW chances are that it could also solve your LTO issues, I'll check that after.
@Graeme Love: I just published a cleaner hotfix. This one no longer leaks temporary files. Let me know if ninja likes it better.
Hi Pierre,
Tested our build process with the *3.52* toolset on Windows 10 using SDK 16. Everything seems to be working as it did.
Thanks,
Graeme
Glad to know that.
Happy building!
Moderators: Pierre-Marie Baty