caffe学习中遇到的问题及解决方法

1、mnist数据集训练中遇到的问题

 convert_mnist_data.cpp:48] Check failed: image_file Unable to open file data/mnist/t10k-images-idx3-ubyte  *** Check failure stack trace: ***  

Aborted (core dumped) 

解决方法：
a）检查下载数据集与create_mnist.sh文件中的名字是否一致
b) 在caffe目录下跑数据集
$ ./examples/mnist/create_mnist.sh

2.draw_net.py中的问题
Traceback (most recent call last):
  File "draw_net.py", line 58, in <module>
    main()
  File "draw_net.py", line 54, in main
    phase)
  File "/home/c/caffe/python/caffe/draw.py", line 244, in draw_net_to_file
    fid.write(draw_net(caffe_net, rankdir, ext, phase))
  File "/home/c/caffe/python/caffe/draw.py", line 223, in draw_net
    return get_pydot_graph(caffe_net, rankdir, phase=phase).create(format=ext)
  File "/usr/local/lib/python2.7/dist-packages/pydot.py", line 1867, in create
    raise OSError(*args)
OSError: [Errno 2] "dot" not found in path.

解决方法
先安装graphviz否则会出现类似："dot" not found in path的问题安装graphviz不要用pip install安装，否则还是会找不到可执行程序安装：sudo apt-get insall graphviz然后安装pydot：pip install pydot