tensorflow/models · error · ValueError

Unsupported activation `{}`.

Error message

Unsupported activation `{}`.

What it means

Error "Unsupported activation `{}`." thrown in tensorflow/models.

Source

Thrown at official/legacy/detection/modeling/architecture/heads.py:72:72

    if activation == 'relu':
      self._activation_op = tf.nn.relu
    elif activation == 'swish':
      self._activation_op = tf.nn.swish
    else:
      raise ValueError('Unsupported activation `{}`.'.format(activation))

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/legaacy/detection/modeling/architecture/heads.py:72 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tensorflow/models@e006f5f0d5 (2026-08-24). Data as JSON: /api/errors/1cd425f93c01fdc0. Report an issue: GitHub.