Hello, I am trying to implement the following pennylane circuit.

```
def layer(W):
qml.Rot(W[0, 0], W[0, 1], W[0, 2], wires=1)
qml.Rot(W[1, 0], W[1, 1], W[1, 2], wires=2)
qml.CNOT(wires=[0, 1])
def U(weights):
for W in weights:
layer(W)
@qml.qnode(dev, interface='torch')
def circuit(weights, data):
qml.Hadamard(wires=0)
qml.AmplitudeEmbedding(data, wires=range(1,3))
qml.ctrl(op=U, control=0, control_values=0)(weights=weights)
# qml.PauliX(wires=0)
qml.ctrl(op=U, control=0, control_values=1)(weights=weights)
return qml.expval(qml.PauliZ(0))
def variational_classifier(weights, bias, angles):
return circuit(weights, angles) + bias
# Display the quantum circuit
num_layers = 2
num_qubits = 2
X = torch.rand(1,4)
norm = torch.sqrt(torch.sum(X**2))
X = X/norm
print(qml.draw(circuit)(torch.tensor(0.01*np.random.rand(num_layers, num_qubits, 3), requires_grad=True), X))
```

On running the code I get the following error.

```
ValueError: The control wires must be different from the base operation wires.
```

And, finally, here is the output of `qml.about()`

.

```
Name: PennyLane
Version: 0.28.0
Summary: PennyLane is a Python quantum machine learning library by Xanadu Inc.
Home-page: https://github.com/XanaduAI/pennylane
Author:
Author-email:
License: Apache License 2.0
Location: /home/akash/anaconda3/envs/qepy39/lib/python3.8/site-packages
Requires: appdirs, autograd, autoray, cachetools, networkx, numpy, pennylane-lightning, requests, retworkx, scipy, semantic-version, toml
Required-by: PennyLane-Lightning
Platform info: Linux-6.5.0-14-generic-x86_64-with-glibc2.17
Python version: 3.8.16
Numpy version: 1.20.3
Scipy version: 1.10.0
Installed devices:
- default.gaussian (PennyLane-0.28.0)
- default.mixed (PennyLane-0.28.0)
- default.qubit (PennyLane-0.28.0)
- default.qubit.autograd (PennyLane-0.28.0)
- default.qubit.jax (PennyLane-0.28.0)
- default.qubit.tf (PennyLane-0.28.0)
- default.qubit.torch (PennyLane-0.28.0)
- default.qutrit (PennyLane-0.28.0)
- null.qubit (PennyLane-0.28.0)
- lightning.qubit (PennyLane-Lightning-0.28.0)
```

I am not sure what wrong I am doing here. According to the code, qubit 0 is supposed to be the control qubit, and qubits 1 and 2 are supposed to be the qubits where I apply the unitary operations.