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Cannot Import Name 'adjoint_ops' from 'pennylane.devices.default_qubit' When Using lightning.qubit Device #860

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AIdjis opened this issue Aug 20, 2024 · 1 comment

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@AIdjis
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AIdjis commented Aug 20, 2024

Issue description

when i use the lightning.qubit device i got the error below i already install pennylane-lightning latest version.

Source code and tracebacks

import pennylane as qml
dev = qml.device("lightning.qubit", wires=2,)
File c:\Users\pc1\anaconda3\envs\quantum\lib\site-packages\pennylane_lightning\lightning_qubit\__init__.py:18
     [14](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/__init__.py:14) """PennyLane lightning_qubit package."""
     [16](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/__init__.py:16) from pennylane_lightning.core import __version__
---> [18](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/__init__.py:18) from .lightning_qubit import LightningQubit

File c:\Users\pc1\anaconda3\envs\quantum\lib\site-packages\pennylane_lightning\lightning_qubit\lightning_qubit.py:25
     [23](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:23) import pennylane as qml
     [24](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:24) from pennylane.devices import DefaultExecutionConfig, Device, ExecutionConfig
---> [25](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:25) from pennylane.devices.default_qubit import adjoint_ops
     [26](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:26) from pennylane.devices.modifiers import simulator_tracking, single_tape_support
...
   (...)
     [34](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:34)     validate_observables,
     [35](file:///C:/Users/pc1/anaconda3/envs/quantum/lib/site-packages/pennylane_lightning/lightning_qubit/lightning_qubit.py:35) )

ImportError: cannot import name 'adjoint_ops' from 'pennylane.devices.default_qubit'
  • System information:
Name: PennyLane
Version: 0.37.0
Summary: PennyLane is a cross-platform Python library for quantum computing, quantum machine learning, and quantum chemistry. Train a quantum computer the same way as a neural network.
Home-page: https://github.com/PennyLaneAI/pennylane
Author: 
Author-email: 
License: Apache License 2.0
Location: [c:\users\pc1\anaconda3\envs\quantum\lib\site-packages](file:///C:/users/pc1/anaconda3/envs/quantum/lib/site-packages)
Requires: appdirs, autograd, autoray, cachetools, networkx, numpy, packaging, pennylane-lightning, requests, rustworkx, scipy, semantic-version, toml, typing-extensions
Required-by: PennyLane-Honeywell, PennyLane-qiskit, PennyLane_Lightning

Platform info:           Windows-10-10.0.22621-SP0
Python version:          3.10.13
Numpy version:           1.26.4
Scipy version:           1.14.0
Installed devices:
- default.clifford (PennyLane-0.37.0)
- default.gaussian (PennyLane-0.37.0)
- default.mixed (PennyLane-0.37.0)
- default.qubit (PennyLane-0.37.0)
- default.qubit.autograd (PennyLane-0.37.0)
- default.qubit.jax (PennyLane-0.37.0)
- default.qubit.legacy (PennyLane-0.37.0)
- default.qubit.tf (PennyLane-0.37.0)
- default.qubit.torch (PennyLane-0.37.0)
- default.qutrit (PennyLane-0.37.0)
- default.qutrit.mixed (PennyLane-0.37.0)
- default.tensor (PennyLane-0.37.0)
- null.qubit (PennyLane-0.37.0)
- honeywell.hqs (PennyLane-Honeywell-0.34.1)
- lightning.qubit (PennyLane_Lightning-0.37.0)
- qiskit.aer (PennyLane-qiskit-0.36.0)
- qiskit.basicaer (PennyLane-qiskit-0.36.0)
- qiskit.basicsim (PennyLane-qiskit-0.36.0)
- qiskit.ibmq (PennyLane-qiskit-0.36.0)
- qiskit.ibmq.circuit_runner (PennyLane-qiskit-0.36.0)
- qiskit.ibmq.sampler (PennyLane-qiskit-0.36.0)
- qiskit.remote (PennyLane-qiskit-0.36.0)
@mlxd
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mlxd commented Aug 20, 2024

Hi @AIdjis thanks for reporting this. Can you include the output from the issue template's System Information section?

#### Before posting an issue
...
* *System information:* (post the output of `import pennylane as qml; qml.about()`)

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