description: Operation was rejected because the system is not in a state to execute it.

tf.errors.FailedPreconditionError

Operation was rejected because the system is not in a state to execute it.

Inherits From: OpError

tf.errors.FailedPreconditionError(
    node_def, op, message
)

This exception is most commonly raised when running an operation that reads a tf.Variable before it has been initialized.

Attributes

error_code The integer error code that describes the error.
message The error message that describes the error.
node_def The NodeDef proto representing the op that failed.
op The operation that failed, if known.

N.B. If the failed op was synthesized at runtime, e.g. a Send or Recv op, there will be no corresponding tf.Operation object. In that case, this will return None, and you should instead use the tf.errors.OpError.node_def to discover information about the op.