参考:https://stackoverflow.com/questions/41813665/tensorflow-slim-typeerror-expected-int32-got-list-containing-tensors-of-type
我的代码是：
image_seq = tf.concat(0, image_seq)
然后就报错了：
Backend TkAgg is interactive backend. Turning interactive mode on.
Traceback (most recent call last):
File "/home/work/Pycharm/pycharm-community-2017.1.4/helpers/pydev/pydevd.py", line 1591, in <module>
globals = debugger.run(setup['file'], None, None, is_module)
File "/home/work/Pycharm/pycharm-community-2017.1.4/helpers/pydev/pydevd.py", line 1018, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "/home/tensorflow/models/research/video_prediction/grab_train_images.py", line 74, in <module>
train_image_tensor = build_image_input()
File "/home/tensorflow/models/research/video_prediction/grab_train_images.py", line 60, in build_image_input
image_seq = tf.concat(0, image_seq)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/array_ops.py", line 1061, in concat
dtype=dtypes.int32).get_shape(
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 611, in convert_to_tensor
as_ref=False)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 676, in internal_convert_to_tensor
ret = conversion_func(value, dtype=dtype, name=name, as_ref=as_ref)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/constant_op.py", line 121, in _constant_tensor_conversion_function
return constant(v, dtype=dtype, name=name)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/constant_op.py", line 102, in constant
tensor_util.make_tensor_proto(value, dtype=dtype, shape=shape, verify_shape=verify_shape))
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/tensor_util.py", line 376, in make_tensor_proto
_AssertCompatible(values, dtype)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/tensor_util.py", line 302, in _AssertCompatible
(dtype.name, repr(mismatch), type(mismatch).__name__))
TypeError: Expected int32, got list containing Tensors of type '_Message' instead.
网上说是版本问题，要改为下面的，就好了：
image_seq = tf.concat(image_seq, 0)