Thanks for the information!
Edit: figured out the workspace thing. When I try to build I get an error that says,
"Running target post-build steps
arm-none-eabi-objcopy.exe -I ihex .\build\myproject.hex -O binary .\build\myproject.bin
Execution of ‘.\build\lpcrc .\build\myproject.bin’ in ‘C:\Users\Gavin\Documents\GitHub\MyProject’ failed.
Edit2: I hadn’t copied the lpcrc.exe file to my build folder yet. It works now.