i have had error during train the model

[manlinglee]

while running :
!python /content/models/research/object_detection/model_main.py
--pipeline_config_path={pipeline_fname}
--model_dir={model_dir}
--alsologtostderr
--num_train_steps={num_steps}
--num_eval_steps={num_eval_steps}

here's the outcome:
2021-08-04 06:55:58.798690: I tensorflow/stream_executor/platform/default/dso_loader.cc:53] Successfully opened dynamic library libcudart.so.11.0
WARNING:tensorflow:Forced number of epochs for all eval validations to be 1.
W0804 06:56:01.288674 140036114126720 model_lib.py:817] Forced number of epochs for all eval validations to be 1.
INFO:tensorflow:Maybe overwriting train_steps: 1000
I0804 06:56:01.288900 140036114126720 config_util.py:552] Maybe overwriting train_steps: 1000
INFO:tensorflow:Maybe overwriting use_bfloat16: False
I0804 06:56:01.289011 140036114126720 config_util.py:552] Maybe overwriting use_bfloat16: False
INFO:tensorflow:Maybe overwriting sample_1_of_n_eval_examples: 1
I0804 06:56:01.289091 140036114126720 config_util.py:552] Maybe overwriting sample_1_of_n_eval_examples: 1
INFO:tensorflow:Maybe overwriting eval_num_epochs: 1
I0804 06:56:01.289172 140036114126720 config_util.py:552] Maybe overwriting eval_num_epochs: 1
WARNING:tensorflow:Expected number of evaluation epochs is 1, but instead encountered eval_on_train_input_config.num_epochs = 0. Overwriting num_epochs to 1.
W0804 06:56:01.289274 140036114126720 model_lib.py:833] Expected number of evaluation epochs is 1, but instead encountered eval_on_train_input_config.num_epochs = 0. Overwriting num_epochs to 1.
Traceback (most recent call last):
File "/content/models/research/object_detection/model_main.py", line 108, in
tf.app.run()
File "/usr/local/lib/python3.7/dist-packages/tensorflow/python/platform/app.py", line 40, in run
_run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
File "/usr/local/lib/python3.7/dist-packages/absl/app.py", line 303, in run
_run_main(main, args)
File "/usr/local/lib/python3.7/dist-packages/absl/app.py", line 251, in _run_main
sys.exit(main(argv))
File "/content/models/research/object_detection/model_main.py", line 70, in main
FLAGS.sample_1_of_n_eval_on_train_examples))
File "/content/models/research/object_detection/model_lib.py", line 864, in create_estimator_and_inputs
model_config=model_config, predict_input_config=eval_input_configs[0])
IndexError: list index (0) out of range