I’m not sure what the first error means here

[0hmX]

Package code to reproduce

Error

Execution Error: Not able to guess root component: RootCircuit has no children (use circuit.add(...)). "entrypoint": "entrypoint.tsx" is set in the runner configuration, entrypoints must contain "circuit.add(...)", you might be looking to use mainComponentPath instead if your file exports a component.
@tscircuit/eval@0.0.606
@tscircuit/core@0.0.988
Error: Not able to guess root component: RootCircuit has no children (use circuit.add(...))
    at RootCircuit._guessRootComponent (blob:http://localhost:3020/642a1a6f-5474-4c56-b220-d55103c961d9:622:117251)
    at RootCircuit.render (blob:http://localhost:3020/642a1a6f-5474-4c56-b220-d55103c961d9:622:117910)
    at RootCircuit.getCircuitJson (blob:http://localhost:3020/642a1a6f-5474-4c56-b220-d55103c961d9:622:118782)
    at Object.getCircuitJson (blob:http://localhost:3020/642a1a6f-5474-4c56-b220-d55103c961d9:885:7481)
    at callback (blob:http://localhost:3020/642a1a6f-5474-4c56-b220-d55103c961d9:348:2989)

[MustafaMulla29]

@0hmX filename should be circuit.tscircuit.tsx? Shouldn't it be example.circuit.tsx or just example.tsx

[MustafaMulla29]

I think you gave the wrong repro link

[0hmX]

It’s the same code — I double-checked. Also, I’m not sure why the file name would matter.

After stopping and restarting the server, the issue seems to have disappeared. Good for us 🧀