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Fixed
Votes
0
Found in
2020.2.0a17
2020.2.0b3
Issue ID
1277881
Regression
Yes
IL2CPP builds fail when using Mirror networking package
Reproduction steps:
1. Open the attached project ("case_1277881-IL2CPP-Mirror-build.zip")
2. Try making Standalone IL2CPP build.
Expected result: Build succeeds
Actual result: Build fails with "il2cpp.exe didn't catch exception: Unity.IL2CPP.AggregateErrorInformationAlreadyProcessedException" error
Reproducible with: 2020.2.0a17, 2020.2.0b3
Not reproducible with: 2018.4.27f1, 2019.4.10f1, 2020.1.6f1, 2020.2.0a16
Notes:
1. The issue does not reproduce when building with Mono backend
2. Mirror is based on Unity's abandoned UNET Networking system, and it can be found on Asset Store: https://assetstore.unity.com/packages/tools/network/mirror-129321
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larus
Dec 15, 2020 21:04
The bug is actually in Mirror weaver code, but it's also in UNet weaver. This has been fixed in com.unity.multiplayer-hlapi package, version 1.0.8. Similar fix likely also works for Mirror. It was in UNetWeaver.cs during the cecil ResolveMethod calls, for the log functions Debug.LogWarning and Debug.LogError. Issue was the function signatures changed in 2020.2 and the weaver generated invalid IL code as a result.