tf.errors.OperatorNotAllowedInGraphError

Raised when an unsupported operator is present in Graph execution.

tf.errors.OperatorNotAllowedInGraphError(
    *args, **kwargs
)

For example, using a tf.Tensor as a Python bool inside a Graph will raise OperatorNotAllowedInGraphError. Iterating over values inside a tf.Tensor is also not supported in Graph execution.

Example:

@tf.function
def iterate_over(t):
  a,b,c = t
  return a

iterate_over(tf.constant([1, 2, 3]))
Traceback (most recent call last):

OperatorNotAllowedInGraphError: ...