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Run your app

  1. Open the project in Mistle.
  2. Use the Run or Start button (or the provided command in the Terminal).
  3. Wait for the app to load; if you see errors, read the message before rerunning.

Watch for quick signals

  • Green/ready message: the app is running.
  • Red/error message: pause and read the first line—it usually tells you what’s missing.
  • Nothing happens: check that you’re in the correct project folder.

Use the in-app browser

  1. Open the in-app browser panel.
  2. Enter the local address shown after you run (for example, http://localhost:3000).
  3. Click around and confirm the parts you just changed look right.

Simple debugging flow

  • Refresh the in-app browser after each change.
  • If something looks wrong, undo the last edit and try again.
  • If you’re stuck, copy the error text and ask for help in Chat.