Old project Lightmass issues after importing a project to the current ue4 version

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1

Hey guys, I need a little bit of help here, I’m trying to import an older UE4 project to the current version of UE After loading my project with the current version of UE4 I’m getting strange error messages like the one you can see on my screenshots. Some help would be nice since im new to UE

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Hey, can you attach the screenshots?