issue with cnn_keras.py

[SAhungalla]

When I run the cnn_keras.py file in Visual studio, I get this error,
ValueError: Error when checking target: expected dense_2 to have shape (2,) but got array with shape (3,)
(TF - 1.15.2 / keras 2.2.4)

Please help me to solve this.

[mahnurajput]

is this algo designed on mac?? and plz kindly tell tensorflow==1.5 do only work on gpu?