terminate called after throwing an instance of 'c10::Error'

[navkirat25]

terminate called after throwing an instance of 'c10::Error'
what(): Error opening images file at ./data/train-images-idx3-ubyte
Exception raised from read_images at ../torch/csrc/api/src/data/datasets/mnist.cpp:67 (most recent call first):
frame #0: c10::Error::Error(c10::SourceLocation, std::__cxx11::basic_string<char, std::char_traits, std::allocator >) + 0x69 (0x7f94f2a259f9 in /home/tensorbook/Downloads/libtorch/lib/libc10.so)
frame #1: c10::detail::torchCheckFail(char const*, char const*, unsigned int, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) + 0xd2 (0x7f94f2a22012 in /home/tensorbook/Downloads/libtorch/lib/libc10.so)
frame #2: + 0x3e1dc54 (0x7f94e3983c54 in /home/tensorbook/Downloads/libtorch/lib/libtorch_cpu.so)
frame #3: torch::data::datasets::MNIST::MNIST(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, torch::data::datasets::MNIST::Mode) + 0x46 (0x7f94e3984ab6 in /home/tensorbook/Downloads/libtorch/lib/libtorch_cpu.so)
frame #4: main + 0x86 (0x55dabc296f4e in ./mnist)
frame #5: __libc_start_main + 0xd5 (0x7f94df72e565 in /lib/x86_64-linux-gnu/libc.so.6)
frame #6: _start + 0x2e (0x55dabc296dee in ./mnist)

[Wyatthy]

i got this too , did you solve it?

[Wyatthy]

i got this too , did you solve it?
我解决了，问题的原因在于四个mnist文件没有下载到./data中，你需要使用这一个命令下载下来就好了：
~/projects/pytorch_cpp/cpp/mnist/build$ python3 ../../tools/download_mnist.py -d ./data
then do make
Done