Clean 4.2 engine build with error MSB3073, C1083, swarninterface

Hi LTE -

I wanted to get some more information about the project you are trying to build. What version of the engine are you using, is this a compiled source version of the engine from Github or is this the Launcher version? Also the project itself, is it a code based project, blueprint based, or is it one of our sample levels?

Thank You