If a compiler can be found at this directory while Live++ is running, then there should be no problem spawning it. You can take a look at what happens underneath by opening the log file. The Broker UI ...

esphome-docs/ ├── archetypes/ # Content templates ├── assets/ # Source files for CSS, JS, etc. ├── content/ # Markdown content files ├── data/ # Data files for templates ├── layouts/ # HTML templates ...