F5 does nothing, or AutomationView: Start Simulation runs but the simulation never enters the running state.
- F5 does nothing.
- A message says No project loaded.
- The status bar never switches to running.
- The simulation appears to start but no steps activate.
Start does nothing or errors when:
- No project is loaded. Start shows "No project loaded." The F5 shortcut is also gated on a loaded project.
- The simulation is already running. Start is a no-op while running.
- No sequence has parsed successfully. A Sequence with parse errors never loads into the simulation engine, so there is nothing to run. Sequences load only after they parse without errors.
- Make sure a project is loaded. If you only have a single
.seq file open with no project, open or create the project that contains it.
- Open the Problems panel (Ctrl+Shift+M) and clear any parse errors in your Sequence. Until the file parses cleanly, it will not load into the simulation engine.
- Confirm the Sequence has at least one initial step. If not, add one with AutomationView Sequence: Add Initial Step.
- Check the AutomationView indicator in the status bar - no error icon means the Python server is up. If it is down, run AutomationView: Restart Python Server so the file can parse.
- Press F5 again.
Open the Output panel, select the AutomationView channel, and read the trace right before the failure. A Python traceback means you want Python Server Crash; otherwise file an issue with the log attached.