Hi @Seanny_D ,Welcome to the forum!
Great to see you jumping into the world of Unreal!
I did some searching and found a few posts where other users reported the same error you’re getting (MSB4018 SetEnv task failed unexpectedly), along with some potential solutions that worked for them.
I’m also sharing some official documentation that can help you get a better grasp of how to apply your C++ knowledge inside Unreal Engine.
https://dev.epicgames.com/documentation/en-us/unreal-engine/coding-in-unreal-engine-blueprint-vs-cplusplus?application_version=5.5
There’s also a Learning site with tutorials that could help guide you as well.
If you have any questions, don’t hesitate to ask here in the forum , there’s always someone willing to give you a hand with whatever you need!
Hope it helps and happy coding!