whan2013xh

I have the same problem。 Solution: 1、download the toolchains.choose your UE version,my version is 4.26. https://docs.unrealengine.com/4.26/en-US/SharingAndReleasing/Linux/NativeToolchain/ 2、tar the file,then overwrite the path /home/username/UnrealEngine/Engine/Extras/ThirdPartyNotUE/SDKs/HostLinux/Linux_x64/ files.