Trying quantum teleportation in https://github.com/Qiskit/qiskit-textbook/blob/master/content/ch-algorithms/teleportation.ipynb
Succesful runs in 'qasm_simulator', but when switching to IBMQBackend('ibmqx2') I get IBMQJobFailError
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The error is caused by appending gates onto qubits following a measurement. On qubit 1 and qubit 0, you attach a cx gate after a measurementhas already been placed. This will compile on the simulator, but it is not something that is supported on the real hardware.
Matthew Stypulkoski
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Adding link to open issue https://github.com/Qiskit/qiskit-textbook/issues/119 – holmen Jan 02 '20 at 14:55
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You should put measurement after all quantum gates. According to the theory, there is no difference whether gates (in this case CNOTs) are controlled by qubits or classical bits. I encountered the same problem, see solution here.
Martin Vesely
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