been trying for a few days to get a version of ue5 running
initaly i downloaded from https://github.com/EpicGames/UnrealEngine/releases/tag/5.0.0-early-access-1
it compiled but failed on opening a new project , since that repo is a source zip dated 26 May 2021 its safe to say its an older version
since that failed i did a git clone with -
git clone -b 5.0 https://github.com/EpicGames/UnrealEngine.git UnrealEngine5"
and get the errors as in this thread
while struggling with the first build from the zip file , and reading threads on the forum i do remember seeing an older thread discussing this error , but try as i may i cant find it again , from what i remember it was on about graphics drivers (needing updating ) , found out i needed to install vulkan , that got it to run as far as it did
also its fair to say i my current card does not meet min spec to run ue5 , waiting for a new one in the post , so not much i can do till it turns up ,
anyway , since the vulkan drivers are installed i would of expected the git version of the source to get as far as the older zip version did , the fact that there only seems to be a handful of us with the issue seems to reflect that it could be a driver issue ,(newer source written for newer drivers) also as it seems to be involved with the threads compiling the cached shadermaps on startup
all i can say is , update drivers ( to current latest )ensure you have the right driver extentions installed also , , check that your system meets min spec, and , try again
hope this helps , wont know myself for a few days till my new gpu arrives
have fun