title: TF object detection API detection model retraining: "object_detection.protos.TrainConfig" has no field named "fine_tune_checkpoint_version"
body: <p>I'm retraining ssd_mobilenet_v2_coco_2018_03_29 using Tensorflow Object Detection API and I get this particular error on both Windows and Ubuntu environments.
  My environment below is Windows 10 with python 3.6.9, cuda 9.0, and tensorflow 1.15 I used protobuf 3.13.0.
  I did the installation test and it was okay, so now I'm trying with my own dataset and getting the following error</p>
  <pre><code>  google.protobuf.text_format.ParseError: 141:3 : Message type &quot;object_detection.protos.TrainConfig&quot; has no field named &quot;fine_tune_checkpoint_version&quot;.
  </code></pre>
  <p>The config file that I used</p>
  <pre><code># SSD with Mobilenet v2 FPN-lite (go/fpn-lite) feature extractor, shared box
  # predictor and focal loss (a mobile version of Retinanet).
  # Retinanet: see Lin et al, https://arxiv.org/abs/1708.02002
  # Trained on COCO, initialized from Imagenet classification checkpoint
  # Train on TPU-8
  #
  # Achieves 28.2 mAP on COCO17 Val
  
  model {
    ssd {
      inplace_batchnorm_update: true
      freeze_batchnorm: false
      num_classes: 3
      box_coder {
        faster_rcnn_box_coder {
          y_scale: 10.0
          x_scale: 10.0
          height_scale: 5.0
          width_scale: 5.0
        }
      }
      matcher {
        argmax_matcher {
          matched_threshold: 0.5
          unmatched_threshold: 0.5
          ignore_thresholds: false
          negatives_lower_than_unmatched: true
          force_match_for_each_row: true
          use_matmul_gather: true
        }
      }
      similarity_calculator {
        iou_similarity {
        }
      }
      encode_background_as_zeros: true
      anchor_generator {
        multiscale_anchor_generator {
          min_level: 3
          max_level: 7
          anchor_scale: 4.0
          aspect_ratios: [1.0, 2.0, 0.5]
          scales_per_octave: 2
        }
      }
      image_resizer {
        fixed_shape_resizer {
          height: 640
          width: 640
        }
      }
      box_predictor {
        weight_shared_convolutional_box_predictor {
          depth: 128
          class_prediction_bias_init: -4.6
          conv_hyperparams {
            activation: RELU_6,
            regularizer {
              l2_regularizer {
                weight: 0.00004
              }
            }
            initializer {
              random_normal_initializer {
                stddev: 0.01
                mean: 0.0
              }
            }
            batch_norm {
              scale: true,
              decay: 0.997,
              epsilon: 0.001,
            }
          }
          num_layers_before_predictor: 4
          share_prediction_tower: true
          use_depthwise: true
          kernel_size: 3
        }
      }
      feature_extractor {
        type: 'ssd_mobilenet_v2_fpn_keras'
        use_depthwise: true
        fpn {
          min_level: 3
          max_level: 7
          additional_layer_depth: 128
        }
        min_depth: 16
        depth_multiplier: 1.0
        conv_hyperparams {
          activation: RELU_6,
          regularizer {
            l2_regularizer {
              weight: 0.00004
            }
          }
          initializer {
            random_normal_initializer {
              stddev: 0.01
              mean: 0.0
            }
          }
          batch_norm {
            scale: true,
            decay: 0.997,
            epsilon: 0.001,
          }
        }
        override_base_feature_extractor_hyperparams: true
      }
      loss {
        classification_loss {
          weighted_sigmoid_focal {
            alpha: 0.25
            gamma: 2.0
          }
        }
        localization_loss {
          weighted_smooth_l1 {
          }
        }
        classification_weight: 1.0
        localization_weight: 1.0
      }
      normalize_loss_by_num_matches: true
      normalize_loc_loss_by_codesize: true
      post_processing {
        batch_non_max_suppression {
          score_threshold: 1e-8
          iou_threshold: 0.6
          max_detections_per_class: 100
          max_total_detections: 100
        }
        score_converter: SIGMOID
      }
    }
  }
  
  train_config: {
    fine_tune_checkpoint_version: V2
    fine_tune_checkpoint: &quot;D:/me1eye/New folder/29082020/models/research/object_detection/ssd_mobilenet_v2_coco_2018_03_29/mobilenet_v2.ckpt-1&quot;
    fine_tune_checkpoint_type: &quot;classification&quot;
    batch_size: 128
    sync_replicas: true
    startup_delay_steps: 0
    replicas_to_aggregate: 8
    num_steps: 50000
    data_augmentation_options {
      random_horizontal_flip {
      }
    }
    data_augmentation_options {
      random_crop_image {
        min_object_covered: 0.0
        min_aspect_ratio: 0.75
        max_aspect_ratio: 3.0
        min_area: 0.75
        max_area: 1.0
        overlap_thresh: 0.0
      }
    }
    optimizer {
      momentum_optimizer: {
        learning_rate: {
          cosine_decay_learning_rate {
            learning_rate_base: .08
            total_steps: 50000
            warmup_learning_rate: .026666
            warmup_steps: 1000
          }
        }
        momentum_optimizer_value: 0.9
      }
      use_moving_average: false
    }
    max_number_of_boxes: 100
    unpad_groundtruth_tensors: false
  }
  
  train_input_reader: {
    label_map_path: &quot;D:/me1eye/New folder/29082020/models/research/object_detection/labelmap.pbtxt&quot;
    tf_record_input_reader {
      input_path: &quot;D:/me1eye/New folder/29082020/models/research/object_detection/train.record&quot;
    }
  }
  
  eval_config: {
    metrics_set: &quot;coco_detection_metrics&quot;
    use_moving_averages: false
  }
  
  eval_input_reader: {
    label_map_path: &quot;D:/me1eye/New folder/29082020/models/research/object_detection/labelmap.pbtxt&quot;
    shuffle: false
    num_epochs: 1
    tf_record_input_reader {
      input_path: &quot;D:/me1eye/New folder/29082020/models/research/object_detection/test.record&quot;
    }
  }
  </code></pre>
  <p>List of installed packages:</p>
  <pre><code>Package                         Version
  ------------------------------- -------------------
  absl-py                         0.10.0
  argon2-cffi                     20.1.0
  astor                           0.8.1
  astunparse                      1.6.3
  attrs                           20.1.0
  backcall                        0.2.0
  bleach                          3.1.5
  cachetools                      4.1.1
  certifi                         2020.6.20
  cffi                            1.14.2
  chardet                         3.0.4
  colorama                        0.4.3
  contextlib2                     0.6.0.post1
  cycler                          0.10.0
  Cython                          0.29.21
  dataclasses                     0.7
  decorator                       4.4.2
  defusedxml                      0.6.0
  dill                            0.3.2
  dm-tree                         0.1.5
  docutils                        0.16
  entrypoints                     0.3
  future                          0.18.2
  gast                            0.2.2
  gin-config                      0.3.0
  google-api-core                 1.22.1
  google-api-python-client        1.11.0
  google-auth                     1.21.0
  google-auth-httplib2            0.0.4
  google-auth-oauthlib            0.4.1
  google-cloud-bigquery           1.27.2
  google-cloud-core               1.4.1
  google-crc32c                   1.0.0
  google-pasta                    0.2.0
  google-resumable-media          1.0.0
  googleapis-common-protos        1.52.0
  grpcio                          1.31.0
  h5py                            2.10.0
  httplib2                        0.18.1
  idna                            2.10
  importlib-metadata              1.7.0
  ipykernel                       5.3.4
  ipython                         7.16.1
  ipython-genutils                0.2.0
  ipywidgets                      7.5.1
  jedi                            0.17.2
  Jinja2                          2.11.2
  jsonschema                      3.2.0
  jupyter                         1.0.0
  jupyter-client                  6.1.7
  jupyter-console                 6.2.0
  jupyter-core                    4.6.3
  kaggle                          1.5.6
  Keras-Applications              1.0.8
  Keras-Preprocessing             1.1.2
  keyring                         21.3.1
  kiwisolver                      1.2.0
  lxml                            4.5.2
  Markdown                        3.2.2
  MarkupSafe                      1.1.1
  matplotlib                      3.3.1
  mistune                         0.8.4
  nbconvert                       5.6.1
  nbformat                        5.0.7
  notebook                        6.1.3
  numpy                           1.18.5
  oauthlib                        3.1.0
  opencv-python-headless          4.4.0.42
  opt-einsum                      3.3.0
  packaging                       20.4
  pandas                          1.1.1
  pandocfilters                   1.4.2
  parso                           0.7.1
  pickleshare                     0.7.5
  Pillow                          7.2.0
  pip                             20.2.2
  pkginfo                         1.5.0.1
  prometheus-client               0.8.0
  promise                         2.3
  prompt-toolkit                  3.0.6
  protobuf                        3.13.0
  psutil                          5.7.2
  py-cpuinfo                      7.0.0
  pyasn1                          0.4.8
  pyasn1-modules                  0.2.8
  pycocotools-windows             2.0.0.2
  pycparser                       2.20
  Pygments                        2.6.1
  pyparsing                       2.4.7
  pyrsistent                      0.16.0
  python-dateutil                 2.8.1
  python-slugify                  4.0.1
  pytz                            2020.1
  pywin32                         228
  pywin32-ctypes                  0.2.0
  pywinpty                        0.5.7
  PyYAML                          5.3.1
  pyzmq                           19.0.2
  qtconsole                       4.7.6
  QtPy                            1.9.0
  readme-renderer                 26.0
  requests                        2.24.0
  requests-oauthlib               1.3.0
  requests-toolbelt               0.9.1
  rfc3986                         1.4.0
  rsa                             4.6
  scipy                           1.4.1
  Send2Trash                      1.5.0
  sentencepiece                   0.1.91
  setuptools                      49.6.0.post20200814
  six                             1.15.0
  tensorboard                     1.15.0
  tensorboard-plugin-wit          1.7.0
  tensorflow                      1.15.0
  tensorflow-addons               0.11.2
  tensorflow-datasets             3.2.1
  tensorflow-estimator            1.15.1
  tensorflow-hub                  0.9.0
  tensorflow-metadata             0.23.0
  tensorflow-model-optimization   0.4.1
  tensorflow-object-detection-api 0.1.1
  termcolor                       1.1.0
  terminado                       0.8.3
  testpath                        0.4.4
  text-unidecode                  1.3
  tf-models-official              2.3.0
  tf-slim                         1.1.0
  tornado                         6.0.4
  tqdm                            4.48.2
  traitlets                       4.3.3
  twine                           3.2.0
  typeguard                       2.9.1
  uritemplate                     3.0.1
  urllib3                         1.24.3
  wcwidth                         0.2.5
  webencodings                    0.5.1
  Werkzeug                        1.0.1
  wheel                           0.35.1
  widgetsnbextension              3.5.1
  wincertstore                    0.2
  wrapt                           1.12.1
  zipp                            3.1.0
  </code></pre>
  <p>Error</p>
  <pre><code>   Traceback (most recent call last):
    File &quot;train.py&quot;, line 184, in &lt;module&gt;
      tf.app.run()
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\tensorflow_core\python\platform\app.py&quot;, line 40, in run
      _run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\absl\app.py&quot;, line 300, in run
      _run_main(main, args)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\absl\app.py&quot;, line 251, in _run_main
      sys.exit(main(argv))
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\tensorflow_core\python\util\deprecation.py&quot;, line 324, in new_func
      return func(*args, **kwargs)
    File &quot;train.py&quot;, line 93, in main
      FLAGS.pipeline_config_path)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\object_detection\utils\config_util.py&quot;, line 98, in get_configs_from_pipeline_file
      text_format.Merge(proto_str, pipeline_config)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 734, in Merge
      allow_unknown_field=allow_unknown_field)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 802, in MergeLines
      return parser.MergeLines(lines, message)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 827, in MergeLines
      self._ParseOrMerge(lines, message)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 849, in _ParseOrMerge
      self._MergeField(tokenizer, message)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 974, in _MergeField
      merger(tokenizer, message, field)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 1048, in _MergeMessageField
      self._MergeField(tokenizer, sub_message)
    File &quot;D:\me1eye\New folder\Anaconda3\envs\29082020\lib\site-packages\google\protobuf\text_format.py&quot;, line 941, in _MergeField
      (message_descriptor.full_name, name))
  google.protobuf.text_format.ParseError: 141:3 : Message type &quot;object_detection.protos.TrainConfig&quot; has no field named &quot;fine_tune_checkpoint_version&quot;.
  </code></pre>