最近在复现别人代码的时候，遇到如下问题：
Traceback (most recent call last):
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1365, in _do_call
??? return fn(*args)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1350, in _run_fn
??? target_list, run_metadata)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1443, in _call_tf_sessionrun
??? run_metadata)
tensorflow.python.framework.errors_impl.InvalidArgumentError: indices[0] = 82620 is not in [0, 81648)
?? ? [[{{node ROI/GatherV2_2}}]]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
? File "/home/robot/文档/ye/code/1dense-clutter-grasp-master/algorithm/detection_algorithm.py", line 407, in <module>
??? predict = GraspAlgorithm(parameters)
? File "/home/robot/文档/ye/code/1dense-clutter-grasp-master/algorithm/detection_algorithm.py", line 77, in __init__
??? self.model.detect([null_image], verbose=1)
? File "/home/robot/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/model.py", line 2544, in detect
??? self.keras_model.predict([molded_images, image_metas, anchors], verbose=0)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/keras/engine/training.py", line 1713, in predict
??? verbose=verbose, steps=steps)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/keras/engine/training.py", line 1269, in _predict_loop
??? batch_outs = f(ins_batch)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 2273, in __call__
??? **self.session_kwargs)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 956, in run
??? run_metadata_ptr)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1180, in _run
??? feed_dict_tensor, options, run_metadata)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1359, in _do_run
??? run_metadata)
? File "/home/robot/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/client/session.py", line 1384, in _do_call
??? raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InvalidArgumentError: indices[0] = 82620 is not in [0, 81648)
?? ? [[node ROI/GatherV2_2 (defined at /.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/framework/ops.py:1748) ]]
Original stack trace for 'ROI/GatherV2_2':
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/detection_algorithm.py", line 407, in <module>
??? predict = GraspAlgorithm(parameters)
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/detection_algorithm.py", line 70, in __init__
??? config=config_model)
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/model.py", line 1841, in __init__
??? self.keras_model = self.build(mode=mode, config=config)
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/model.py", line 1969, in build
??? config=config)([rpn_class, rpn_bbox, anchors])
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/keras/engine/topology.py", line 602, in __call__
??? output = self.call(inputs, **kwargs)
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/model.py", line 298, in call
??? names=["pre_nms_anchors"])
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/utils.py", line 835, in batch_slice
??? output_slice = graph_fn(*inputs_slice)
? File "/文档/ye/code/1dense-clutter-grasp-master/algorithm/mrcnn/model.py", line 296, in <lambda>
??? pre_nms_anchors = utils.batch_slice([anchors, ix], lambda a, x: tf.gather(a, x),
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/util/dispatch.py", line 180, in wrapper
??? return target(*args, **kwargs)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/ops/array_ops.py", line 3956, in gather
??? params, indices, axis, name=name)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/ops/gen_array_ops.py", line 4082, in gather_v2
??? batch_dims=batch_dims, name=name)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/framework/op_def_library.py", line 794, in _apply_op_helper
??? op_def=op_def)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/util/deprecation.py", line 507, in new_func
??? return func(*args, **kwargs)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/framework/ops.py", line 3357, in create_op
??? attrs, op_def, compute_device)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/framework/ops.py", line 3426, in _create_op_internal
??? op_def=op_def)
? File "/.virtualenvs/tensor/lib/python3.6/site-packages/tensorflow_core/python/framework/ops.py", line 1748, in __init__
??? self._traceback = tf_stack.extract_stack()
找了好久也没找到解决方法，最后发现一个类似的问题，解决方法是：在model.py中加上两行
mask = tf.greater(tf.shape(anchors)[1], ix, name="bool_mask") ix = tf.stack([tf.boolean_mask(ix, mask)])
?
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