我试图通过Google的ML Engine进行训练。
我主要按照以下文章中的步骤来开发我的训练和测试集：https://towardsdatascience.com/build-a-taylor-swift-detector-with-the-tensorflow-object-detection-api-ml-engine-and-swift-82707f5b4a56
我反复遇到以下错误：
Traceback (most recent call last): File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main "__main__", fname, loader, pkg_name) File "/usr/lib/python2.7/runpy.py", line 72, in _run_code exec code in run_globals File "/root/.local/lib/python2.7/site-packages/object_detection/train.py", line 49, in <module> from object_detection import trainer File "/root/.local/lib/python2.7/site-packages/object_detection/trainer.py", line 27, in <module> from object_detection.builders import preprocessor_builder File "/root/.local/lib/python2.7/site-packages/object_detection/builders/preprocessor_builder.py", line 21, in <module> from object_detection.protos import preprocessor_pb2 ImportError: cannot import name preprocessor_pb2
我克隆并按照object_detection的安装步骤进行操作，包括protobuf编译和设置PYTHONPATH！从控制台运行的示例model_builder_test.py也正常运行。
我的训练作业如下：
gcloud ml-engine jobs submit training my_training_job \--job-dir=gs://myapp.appspot.com/train \--packages dist/object_detection-0.1.tar.gz,slim/dist/slim-0.1.tar.gz \--module-name object_detection.train \--region us-central1 \--config object_detection/samples/cloud/cloud.yml \-- \--train_dir=gs://myapp.appspot.com/train \--pipeline_config_path=gs://myapp.appspot.com/data/ssd_mobilenet_v1_coco.config在控制台中运行python -v返回的版本是2.7
回答：
我想我通过将运行时版本降低到1.2来解决了这个问题：
gcloud ml-engine jobs submit training my_training_job \--runtime-version 1.2 \--job-dir=gs://myapp.appspot.com/train \--packages dist/object_detection-0.1.tar.gz,slim/dist/slim-0.1.tar.gz \--module-name object_detection.train \--region us-central1 \--config object_detection/samples/cloud/cloud.yml \-- \-- train_dir=gs://myapp.appspot.com/train \-- pipeline_config_path=gs://myapp.appspot.com/data/ssd_mobilenet_v1_coco.config随后我收到了关于缺少matplotlib的错误，并更改了以下行：
models/research/setup.pyREQUIRED_PACKAGES = ['Pillow>=1.0', 'matplotlib']并重新运行：
python setup.py sdist(cd slim && python setup.py sdist)我迫不及待地希望Google能发布更多工具来简化训练工作流程！
