#
Dear Community,

Please I have a problem concerning this error and I think it is from the code itself not from my side

[ValidateApp | INFO] Validating ‘/home/jovyan/work/submitted/courseraLearner/W2A2/Logistic_Regression_with_a_Neural_Network_mindset.ipynb’

[ValidateApp | INFO] Executing notebook with kernel: python3

[ValidateApp | ERROR] Timeout waiting for execute reply (30s).

[ValidateApp | ERROR] Interrupting kernel

[ValidateApp | ERROR] Timeout waiting for execute reply (30s).

[ValidateApp | ERROR] Interrupting kernel

Tests failed on 1 cell(s)! These tests could be hidden. Please check your submission.

The following cell failed:

```
w = np.array([[1.], [2]])
b = 1.5
X = np.array([[1., -2., -1.], [3., 0.5, -3.2]])
Y = np.array([[1, 1, 0]])
grads, cost = propagate(w, b, X, Y)
assert type(grads["dw"]) == np.ndarray
assert grads["dw"].shape == (2, 1)
assert type(grads["db"]) == np.float64
print ("dw = " + str(grads["dw"]))
print ("db = " + str(grads["db"]))
print ("cost = " + str(cost))
propagate_test(propagate)
```

The error was:

```
---------------------------------------------------------------------------
AssertionError Traceback (most recent call last)
<ipython-input-14-7cd89fb9dcd2> in <module>
7 assert type(grads["dw"]) == np.ndarray
8 assert grads["dw"].shape == (2, 1)
----> 9 assert type(grads["db"]) == np.float64
10
11
AssertionError:
```

and this was my code:

*{moderator edit - solution code removed}*