ViLD: issue in tfrecords creation

[Weijian Xu]

In the preprocessing step for ViLD, a series of tfrecord files should be created. However, there is an issue in the file path of the tfrecords to create. In create_lvis_tf_record.py:

tpu/models/official/detection/projects/vild/preprocessing/create_lvis_tf_record.py

Line 215 in 01b6706

 osp.join(FLAGS.dest_dir, record_filename)) 

and

tpu/models/official/detection/projects/vild/preprocessing/create_lvis_tf_record.py

Line 266 in 01b6706

 osp.join(FLAGS.dest_dir, 

add FLAGS.dest_dir twice to the path, which incurs issues.

[Adam Kan]

I also encountered this error, my solution was to replace osp.join(FLAGS.dest_dir, record_filename)) on line 215 with record_filename).