构建灯光出现LIghtmass crashed，求助

=== Lightmass crashed: ===
Assertion failed: Importer.ImportData((FBaseMaterialData*)this) [File:/Build/++UE4/Sync/Engine/Source/Programs/UnrealLightmass/Private/ImportExport/Material.cpp] [Line: 13]



0x00007ffe530aa839 KERNELBASE.dll!UnknownFunction []
0x00007ffd9908faa7 UnrealLightmass-Core.dll!UnknownFunction []
0x00007ffd990924b1 UnrealLightmass-Core.dll!UnknownFunction []
0x00007ffd98f1b22a UnrealLightmass-Core.dll!UnknownFunction []
0x00007ffd98e7ce87 UnrealLightmass-Core.dll!UnknownFunction []
0x00007ffd98e7d540 UnrealLightmass-Core.dll!UnknownFunction []
0x00007ff771db2f0a UnrealLightmass.exe!Lightmass::FMaterial::Import() []
0x00007ff771d843cb UnrealLightmass.exe!Lightmass::FLightmassImporter::ConditionalImportObjectWithKey<Lightmass::FMaterial,TMap<Lightmass::FSHAHash,Lightmass::FMaterial * __ptr64,FDefaultSetAllocator,TDefaultMapHashableKeyFuncs<Lightmass::FSHAHash,Lightmass::FMaterial * __ptr64,0> >,Lightmass::FSHAHash>() []
0x00007ff771db666c UnrealLightmass.exe!Lightmass::FStaticLightingMesh::Import() []
0x00007ff771e149a1 UnrealLightmass.exe!Lightmass::FStaticMeshStaticLightingMesh::Import() []
0x00007ff771d89795 UnrealLightmass.exe!Lightmass::FLightmassImporter::ImportObjectArray<Lightmass::FStaticMeshStaticLightingMesh,TMap<FGuid,Lightmass::FStaticMeshStaticLightingMesh * __ptr64,FDefaultSetAllocator,TDefaultMapHashableKeyFuncs<FGuid,Lightmass::FStaticMeshStaticLightingMesh * __ptr64,0> > >() []
0x00007ff771db48be UnrealLightmass.exe!Lightmass::FScene::Import() []
0x00007ff771d9aa84 UnrealLightmass.exe!Lightmass::BuildStaticLighting() []
0x00007ff771dbe11d UnrealLightmass.exe!Lightmass:ightmassMain() []
0x00007ff771ddcb1a UnrealLightmass.exe!main() []
0x00007ff771e45cfc UnrealLightmass.exe!__scrt_common_main_seh() []
0x00007ffe53af7bd4 KERNEL32.DLL!UnknownFunction []
0x00007ffe554cced1 ntdll.dll!UnknownFunction []

求助各位老师指点迷津，构建灯光出现上述提示。

老铁，我也遇到类似情况，我之前把对应引擎里的这个文件夹给删了，就好了。。。不知道你这个啥情况

UnrealEngineer 发表于 2020-2-26 13:57
老铁，我也遇到类似情况，我之前把对应引擎里的这个文件夹给删了，就好了。。。不知道你这个啥情况
...

谢谢，我试一下

UnrealEngineer 发表于 2020-2-26 13:57
老铁，我也遇到类似情况，我之前把对应引擎里的这个文件夹给删了，就好了。。。不知道你这个啥情况
...

老铁看来不是这么回事，我这里没有这个文件夹

UnrealEngineer 发表于 2020-2-26 13:57
老铁，我也遇到类似情况，我之前把对应引擎里的这个文件夹给删了，就好了。。。不知道你这个啥情况
...

搞定了，看来以前的老帖子，还是要清一下Swarm里的cache

LXQ2020 发表于 2020-2-26 14:28
老铁看来不是这么回事，我这里没有这个文件夹

编辑器启动的swarmagent默认是在C盘的好像

清理下swarm吧

清除缓存就可以了