Traceback (most recent call last):


 "<stdin>", line 1, in <module>
AttributeError: 'Counter' object has no attribute 'labels'

``Traceback (most recent call last):


 "object_detection/builders/model_builder_test.py", line 23, in <module>

from object_detection.builders import model_builder


 "/content/models/research/object_detection/builders/model_builder.py", line 22, in <module>

from object_detection.builders import box_predictor_builder


 "/content/models/research/object_detection/builders/box_predictor_builder.py", line 20, in <module>

from object_detection.predictors import convolutional_box_predictor


 "/content/models/research/object_detection/predictors/convolutional_box_predictor.py", line 23, in <module>

slim = tf.contrib.slim
AttributeError: module 'tensorflow' has no attribute 'contrib'
