AzureBackend Nonetype error

[auschoi96]

Hi!

I'm trying to convert a simple Qiskit circuit to be able to run on the Azure Backend and target the IONQ simulator. While I can see the code the AerBackend correctly, I cannot seem to run process_circuit on the Azure Backend as I always get a Nonetype error. Did I miss a step before running on the Azure Backend? I followed the instruction to install dotnet and iqsharp but it could be I installed that incorrectly (I'm using Pycharm on Windows) Any advice?

import sys
import time
from qiskit import *
from qiskit import IBMQ, Aer
from qiskit.visualization import plot_histogram
import numpy as np
from pytket import *
import pytket.extensions.qiskit as pyqi
import pytket.extensions.qsharp as AB

# provider = IBMQ.load_account()
# backend = provider.get_backend('ibmq_lima')

"""Basic Qiskit circuit with no TKET adjustment"""

qc = QuantumCircuit(2,2)
qc.h(0)
qc.cx(0,1)

meas = QuantumCircuit(2,2)
meas.measure([0,1],[0,1])

regularBackend = BasicAer.get_backend('qasm_simulator')
drawing = qc.compose(meas)
result = regularBackend.run(transpile(drawing, regularBackend), shots=1000).result()
counts = result.get_counts(qc)
print(counts)

"""Qiskit to TKET conversion """

tketCirc = pyqi.qiskit_to_tk(qc)
print(type(tketCirc))
tketQiskitBackend = pyqi.AerBackend()
tket_compiled_circ = tketQiskitBackend.get_compiled_circuit(tketCirc)
tket_handle = tketQiskitBackend.process_circuit(tketCirc,n_shots=5)
tket_counts = tketQiskitBackend.get_result((tket_handle)).get_counts()
print(tket_counts)

"""TKET to Azure job"""
IONQ = AB.AzureBackend("My Azure details here")
print(IONQ.valid_circuit(tketCirc))
print("Pass 1")
compiled_cric = IONQ.get_compiled_circuit(tketCirc)
print("Pass 2")
processCircuit = IONQ.process_circuit(compiled_cric,n_shots=5)
print("Pass 3")
tketResult = IONQ.get_result(processCircuit)

print(tketResult)`

The error below:

TypeError                                 Traceback (most recent call last)
<ipython-input-15-c60d2fd27c32> in <module>
      4 compiled_cric = IONQ.get_compiled_circuit(tketCirc)
      5 print("Pass 2")
----> 6 processCircuit = IONQ.process_circuit(compiled_cric,n_shots=5)
      7 print("Pass 3")
      8 tketResult = IONQ.get_result(processCircuit)

c:\users\austin choi\appdata\local\programs\python\python39\lib\site-packages\pytket\backends\backend.py in process_circuit(self, circuit, n_shots, valid_check, **kwargs)
    242         """
    243 
--> 244         return self.process_circuits(
    245             [circuit], n_shots=n_shots, valid_check=valid_check, **kwargs
    246         )[0]

c:\users\austin choi\appdata\local\programs\python\python39\lib\site-packages\pytket\extensions\qsharp\backends\azure_quantum.py in process_circuits(self, circuits, n_shots, valid_check, **kwargs)
    211                 qc = cast("QSharpCallable", qscompile(qs))
    212                 qsharp.azure.target(self.target.id)
--> 213                 job = qsharp.azure.submit(qc, jobName=c.name, shots=n_shots)
    214                 handle = ResultHandle(job.id, n_shots, ppcirc_str)
    215                 handles.append(handle)

c:\users\austin choi\appdata\local\programs\python\python39\lib\site-packages\qsharp\azure.py in submit(op, **params)
    126     """
    127     result = qsharp.client._execute_callable_magic("azure.submit", op, raise_on_stderr=False, **params)
--> 128     if "error_code" in result: raise AzureError(result)
    129     return AzureJob(result)
    130 

TypeError: argument of type 'NoneType' is not iterable

[cqc-alec]

Hi Austin,
I have tried running your script here, using my Azure credentials. I get a different error:

AzureError: {'error_code': 1010, 'error_name': 'JobSubmissionFailed', 'error_description': 'Failed to submit the job to the Azure Quantum workspace.'}

I am not sure why we get different error messages, but it seems the error is because the circuit has no measurement operations.

Can you try again, adding the line

tketCirc.measure_all()

after the qiskit_to_tk() command?

Doing that makes it work for me.

[auschoi96]

Hey @cqc-alec, I'm still getting the same error even with the measure_all(). I think I may have to try and reinstall iqsharp and the dotnet sdk.

Thanks for confirming!

[cqc-alec]

What is your target device? (I was using ionq.simulator.)

[auschoi96]

Same target device. I tried installing Visual Studio 2022 (initially was using pycharm) but have had no luck!

…

On Fri, Apr 22, 2022, 6:04 AM Alec Edgington ***@***.***> wrote: What is your target device? (I was using ionq.simulator.) — Reply to this email directly, view it on GitHub <#143 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJHXWL4MGVDTGS3IF2Y3NLDVGJ2RLANCNFSM5T5YEZAQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>