# Pennylane-Qiskit Error: Converter does not exist. Make sure the required plugin is installed and supports conversion **URL:** \ **Category:** PennyLane Help\ **Created:** [December 8, 2023, 11:25am UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784 "2023-12-08T11:25:39Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![LDM](https://avatars.discourse-cdn.com/v4/letter/l/c68b51/32.png) [@LDM](https://discuss.pennylane.ai/u/LDM)\ **Post date:** [December 8, 2023, 11:25am UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/1 "2023-12-08T11:25:39Z")
I am getting error on Pennylane-Qiskit, “Converter does not exist. Make sure the required plugin is installed and supports conversion”. Need help. I have installed all the latest softwares, still the same issue. PennyLane==0.33.1 PennyLane-Lightning==0.33.1 PennyLane-qiskit==0.33.1 PennyLane-SF==0.29.1 qiskit==0.45.1 qiskit-aer==0.13.1 qiskit-ibm-provider==0.7.2 qiskit-ibm-runtime==0.17.0 qiskit-terra==0.45.1 quantum-blackbird==0.5.0 quantum-xir==0.2.2 ---
**Author:** ![isaacdevlugt](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/isaacdevlugt/32/1159_2.png) [@isaacdevlugt](https://discuss.pennylane.ai/u/isaacdevlugt)\ **Post date:** [December 8, 2023, 11:05pm UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/2 "2023-12-08T23:05:21Z")
Hey @LDM, welcome to the forum 🚀 Would you be able to post a minimal example that gives you the error that you’re seeing? It would help us figure out what’s going on 🙂 ---
**Author:** ![LDM](https://avatars.discourse-cdn.com/v4/letter/l/c68b51/32.png) [@LDM](https://discuss.pennylane.ai/u/LDM)\ **Post date:** [December 11, 2023, 2:44am UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/3 "2023-12-11T02:44:46Z")
Hi @isaacdevlugt , Thanks for replying. After installing Pennylane, Qiskit and all the required software. When I tries very simple program(given below) gives the error " ValueError: Converter does not exist. Make sure the required plugin is installed and supports conversion." ## Program: ```auto import pennylane as qml from qiskit import QuantumCircuit qc = QuantumCircuit(2) qc.rz(0.543, [0]) qc.cx(0, 1) my_circuit = qml.from_qiskit(qc) ``` * * * I am not able to proceed further because of this error. Some details of my laptop: OS: MacOS Ventura 13.6.2 Chip: Apple M1 Pro. Please do let me know if you need any more information. Thanks ---
**Author:** ![isaacdevlugt](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/isaacdevlugt/32/1159_2.png) [@isaacdevlugt](https://discuss.pennylane.ai/u/isaacdevlugt)\ **Post date:** [December 11, 2023, 6:51pm UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/4 "2023-12-11T18:51:00Z")
Hey @LDM, I don’t think the `pennylane-qiskit` plugin is installed for you (you can do so with `pip install pennylane-qiskit`), but to make sure could you show me your output for `qml.about()`? The code example you attached works for me and here is my `qml.about()`: ```auto Name: PennyLane Version: 0.33.1 Summary: PennyLane is a Python quantum machine learning library by Xanadu Inc. Home-page: https://github.com/PennyLaneAI/pennylane Author: Author-email: License: Apache License 2.0 Location: /Users/isaac/.virtualenvs/pennylane-qiskit-2/lib/python3.9/site-packages Requires: appdirs, autograd, autoray, cachetools, networkx, numpy, pennylane-lightning, requests, rustworkx, scipy, semantic-version, toml, typing-extensions Required-by: PennyLane-Lightning, PennyLane-qiskit Platform info: macOS-14.1.2-x86_64-i386-64bit Python version: 3.9.14 Numpy version: 1.23.5 Scipy version: 1.11.3 Installed devices: - default.gaussian (PennyLane-0.33.1) - default.mixed (PennyLane-0.33.1) - default.qubit (PennyLane-0.33.1) - default.qubit.autograd (PennyLane-0.33.1) - default.qubit.jax (PennyLane-0.33.1) - default.qubit.legacy (PennyLane-0.33.1) - default.qubit.tf (PennyLane-0.33.1) - default.qubit.torch (PennyLane-0.33.1) - default.qutrit (PennyLane-0.33.1) - null.qubit (PennyLane-0.33.1) - qiskit.aer (PennyLane-qiskit-0.33.1) - qiskit.basicaer (PennyLane-qiskit-0.33.1) - qiskit.ibmq (PennyLane-qiskit-0.33.1) - qiskit.ibmq.circuit_runner (PennyLane-qiskit-0.33.1) - qiskit.ibmq.sampler (PennyLane-qiskit-0.33.1) - qiskit.remote (PennyLane-qiskit-0.33.1) - lightning.qubit (PennyLane-Lightning-0.33.1) ``` ---
**Author:** ![LDM](https://avatars.discourse-cdn.com/v4/letter/l/c68b51/32.png) [@LDM](https://discuss.pennylane.ai/u/LDM)\ **Post date:** [December 12, 2023, 5:23am UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/5 "2023-12-12T05:23:57Z")
Hi @isaacdevlugt , Thanks for continuous follow up. Yes Pennylane qiskit is already installed - PennyLane==0.33.1 PennyLane-Lightning==0.33.1 PennyLane-qiskit==0.33.1 PennyLane-SF==0.29.1 Please find here below the output of _qml.about()_: > > > _qml.about()_ > > > Name: PennyLane > > > Version: 0.33.1 > > > Summary: PennyLane is a Python quantum machine learning library by Xanadu Inc. > > > Home-page: [GitHub - PennyLaneAI/pennylane: PennyLane is a cross-platform Python library for differentiable programming of quantum computers. Train a quantum computer the same way as a neural network.](https://github.com/PennyLaneAI/pennylane) > > > Author: > > > Author-email: > > > License: Apache License 2.0 > > > Location: /Users/-----/miniforge3/envs/dl/lib/python3.10/site-packages > > > Requires: appdirs, autograd, autoray, cachetools, networkx, numpy, pennylane-lightning, requests, rustworkx, scipy, semantic-version, toml, typing-extensions > > > Required-by: PennyLane-Lightning, PennyLane-qiskit, PennyLane-SF Platform info: macOS-13.6.2-arm64-arm-64bit Python version: 3.10.12 Numpy version: 1.23.5 Scipy version: 1.11.4 Installed devices: - default.gaussian (PennyLane-0.33.1) - default.mixed (PennyLane-0.33.1) - default.qubit (PennyLane-0.33.1) - default.qubit.autograd (PennyLane-0.33.1) - default.qubit.jax (PennyLane-0.33.1) - default.qubit.legacy (PennyLane-0.33.1) - default.qubit.tf (PennyLane-0.33.1) - default.qubit.torch (PennyLane-0.33.1) - default.qutrit (PennyLane-0.33.1) - null.qubit (PennyLane-0.33.1) - lightning.qubit (PennyLane-Lightning-0.33.1) - strawberryfields.fock (PennyLane-SF-0.29.1) - strawberryfields.gaussian (PennyLane-SF-0.29.1) - strawberryfields.gbs (PennyLane-SF-0.29.1) - strawberryfields.remote (PennyLane-SF-0.29.1) - strawberryfields.tf (PennyLane-SF-0.29.1) - qiskit.aer (PennyLane-qiskit-0.33.1) - qiskit.basicaer (PennyLane-qiskit-0.33.1) - qiskit.ibmq (PennyLane-qiskit-0.33.1) - qiskit.ibmq.circuit\_runner (PennyLane-qiskit-0.33.1) - qiskit.ibmq.sampler (PennyLane-qiskit-0.33.1) - qiskit.remote (PennyLane-qiskit-0.33.1) ---
**Author:** ![isaacdevlugt](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/isaacdevlugt/32/1159_2.png) [@isaacdevlugt](https://discuss.pennylane.ai/u/isaacdevlugt)\ **Post date:** [December 12, 2023, 5:26pm UTC](https://discuss.pennylane.ai/t/pennylane-qiskit-error-converter-does-not-exist-make-sure-the-required-plugin-is-installed-and-supports-conversion/3784/6 "2023-12-12T17:26:17Z")
@LDM I would make sure that you’re using the correct python. You might have the proper packages installed in one python, but you’re running your code with another. I recommend creating a new, fresh virtual environment, installing the packages in that environment via `python -m pip install pennylane qiskit pennylane-qiskit`, and ensuring that when you run your code that the correct python is being used (you can look at the output of `which python` in a terminal and make sure that that matches your virtual environment). Let me know if this helps!