Maiweide

If you still have the "`FailedPreconditionError: ../ssd_resnet50_v1_fpn_1024x1024_coco17_tpu-8/checkpoint.tmpb8d6f3e0407948dfa546755fd5e7eb78; Is a directory`" Error, Check whether you have called the model_main script with the right model_dir, it probably should be something like `ssd_resnet50_v1_fpn_1024x1024_coco17_tpu-8/saved_model`...