图像分类的代码运行到训练部分报错

[luckeriam]

代码：train_loop()

报错信息：

---

RuntimeError Traceback (most recent call last)
in
----> 1 train_loop()

in train_loop()
28
29 avg_cost_test, accuracy_test = train_test(test_program,
---> 30 reader=test_reader)
31 plot_cost.append(test_prompt, step, avg_cost_test)
32

in train_test(program, reader)
32 avg_cost_np = test_exe.run(program=program,
33 feed=feeder_test.feed(test_data),
---> 34 fetch_list=[avg_cost, acc])
35 accumulated = [x[0] + x[1][0] for x in zip(accumulated, avg_cost_np)]
36 count += 1

/opt/conda/lib/python3.6/site-packages/paddle/fluid/executor.py in run(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
781 warnings.warn(
782 "The following exception is not an EOF exception.")
--> 783 six.reraise(*sys.exc_info())
784
785 def _run_impl(self, program, feed, fetch_list, feed_var_name,

/opt/conda/lib/python3.6/site-packages/six.py in reraise(tp, value, tb)
691 if value.traceback is not tb:
692 raise value.with_traceback(tb)
--> 693 raise value
694 finally:
695 value = None

/opt/conda/lib/python3.6/site-packages/paddle/fluid/executor.py in run(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
776 scope=scope,
777 return_numpy=return_numpy,
--> 778 use_program_cache=use_program_cache)
779 except Exception as e:
780 if not isinstance(e, core.EOFException):

/opt/conda/lib/python3.6/site-packages/paddle/fluid/executor.py in _run_impl(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
829 scope=scope,
830 return_numpy=return_numpy,
--> 831 use_program_cache=use_program_cache)
832
833 program._compile(scope, self.place)

/opt/conda/lib/python3.6/site-packages/paddle/fluid/executor.py in _run_program(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
903 if not use_program_cache:
904 self._default_executor.run(program.desc, scope, 0, True, True,
--> 905 fetch_var_name)
906 else:
907 self._default_executor.run_prepared_ctx(ctx, scope, False, False,

RuntimeError: boost::bad_get: failed value get using boost::get
Gather

[wanghaoshuang]

您好，能麻烦您贴一下完整代码么？

[luckeriam]

https://github.com/PaddlePaddle/book/blob/develop/03.image_classification/README.cn.md

完整代码

[wanghaoshuang]

请问您用的paddle版本是？我来尝试复现下这个问题。