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How to disable/limit Fusion Unity SDK from weaving all DLLs?
justdizzy
2022-03-20 18:58:41
Whenever Unity triggers a code recompile, frequently Fusion.CodeGen reweaves all the DLLs in the project regardless of whether they have any Fusion related code in them or not. Is there a way to limit which DLLs, AsmDefs, or (best) specific files get weaved?
Here are some of the logs from Unity Editor.log:
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.SysrootPackage.Editor.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.SysrootPackage.Editor.dll in 0.106074 seconds
Finished ILPostProcessorRunner in 0.591806 seconds
Finished compile Library/ScriptAssemblies/Unity.SysrootPackage.Editor.dll in 257.185127 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.RenderPipelines.Universal.Editor.Tests.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.RenderPipelines.Universal.Editor.Tests.dll in 0.099881 seconds
Finished ILPostProcessorRunner in 0.55889 seconds
Finished compile Library/ScriptAssemblies/Unity.RenderPipelines.Universal.Editor.Tests.dll in 260.660523 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Addressables.Editor.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Addressables.Editor.dll in 0.0993 seconds
Finished ILPostProcessorRunner in 0.583428 seconds
Finished compile Library/ScriptAssemblies/Unity.Addressables.Editor.dll in 264.505775 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Tilia.Visuals.CollisionFader.Unity.Runtime.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Tilia.Visuals.CollisionFader.Unity.Runtime.dll in 0.09446 seconds
Finished ILPostProcessorRunner in 0.561937 seconds
Finished compile Library/ScriptAssemblies/Tilia.Visuals.CollisionFader.Unity.Runtime.dll in 252.523622 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Sysroot.Linux_x86_64.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Sysroot.Linux_x86_64.dll in 0.096249 seconds
Finished ILPostProcessorRunner in 0.524489 seconds
Finished compile Library/ScriptAssemblies/Unity.Sysroot.Linux_x86_64.dll in 256.437739 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Fusion.Addressables.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Fusion.Addressables.dll in 0.087463 seconds
Finished ILPostProcessorRunner in 0.4951 seconds
Finished compile Library/ScriptAssemblies/Fusion.Addressables.dll in 228.186748 seconds
Starting ILPostProcessorRunner
Starting ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Toolchain.Win-x86_64-Linux-x86_64.dll
Finished ILPostProcessor 'Fusion.CodeGen.ILWeaverBindings' on Unity.Toolchain.Win-x86_64-Linux-x86_64.dll in 0.086952 seconds
Finished ILPostProcessorRunner in 0.478356 seconds
Finished compile Library/ScriptAssemblies/Unity.Toolchain.Win-x86_64-Linux-x86_64.dll in 231.574042 seconds
Finished script compilation in 486.077341 seconds
Comments
Hi @justdizzy ,
Yes, it should be straightforward to limit which DLLs are Weaved.
Open the NetworkProjectConfig asset and look for the "Assemblies To Weave" section, select the ones you don't want to Weave and remove them from the list, save and see how it goes.
--
Ramon Melo
Photon Fusion Team
I have this set to only Assembly-CSharp and Assembly-CSharp-firstpass, but the issue persists.
Hi @justdizzy ,
Which SDK version are you using? Does this also happen on the latest version?
--
Ramon Melo
Photon Fusion Team
It happens in both 1.0.0 Stable and 1.1.0 Nightly.
pgwiazdowski
2022-04-05 11:10:47
What you are observing is as expected, except for those ridiculous compile times. Weaving is actually a two-pass process, first being checking whether a DLL should be altered or not. That's why you see ILPostProcessor in the log.
Does disabling the weaver reduce compile times?
Also, what Unity version are you on?
Unity 2020.3.23
How do I disable weaving? If I do, will my networking classes not work?
pgwiazdowski
2022-05-19 06:43:04
To make absolutely sure ILPostProcessor is not used, simply remove Assets/Photon/FusionCodeGen folder.
I'm having an issue with an assembly I'm using from an external package. I keep getting the error
Session join/create failed. Type Foo.Components.FoobarGameRoomController has not been weaved. Has the assembly Foo been added to NetworkProjectConfig?
I tried adding the Foo assembly to Assemblies to Weave but it just gets automatically removed the next time I run the game in the editor. And the same error shows up.
If I remove the FusionCodeGen folder I get this:
Session join/create failed. Type ControllerPrototype has not been weaved. Has the assembly Assembly-CSharp been added to NetworkProjectConfig?
Any help would be appreciated.
@ramonmelo @photon I have not gotten a response here nor in the discord about the above. Is having common networked components in a separate UPM package not supported?
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