CMake Error THC_LIBRARY notfound

[ll36771]

There is an erro when i execute sh build_cpp.sh .THC_LIBRARY NOTFOUND?
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
THC_LIBRARY
linked by target "crnn" in directory /root/crnn/src/cpp

-- Configuring incomplete, errors occurred!
See also "/root/crnn/src/cpp/build/CMakeFiles/CMakeOutput.log".

I would like to know what is thc_library?where could i get thc_library?

[ll36771]

@bgshih

[bgshih]

Is your Torch7 installation at ${HOME}/torch ? If not, you may need to change src/cpp/CMakeLists.txt manually.

[ll36771]

Thanks a lot.The problem have been solved.
When i train a new model,i encountered a new problem？
[03/16/16 16:16:46] Loading datasets...
[03/16/16 16:16:46] Start training...
/root/torch/install/bin/luajit: bad argument #3 to '?' (torch.*Tensor expected, got nil)
stack traceback:
[C]: at 0x7feef0dc9290
[C]: in function '__newindex'
./utilities.lua:33: in function 'str2label'
./DatasetLmdb.lua:81: in function 'allImageLabel'
./training.lua:84: in function 'trainModel'
main_train.lua:51: in main chunk
[C]: in function 'dofile'
/root/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
[C]: at 0x00406670
Oh,I don't use the cudnn!
@bgshih

[ll36771]

Is there anything wrong with my dataset or something else?

[bgshih]

The function receives a nil argument. I would suggest debugging it with fb.debugger.

[wew2012]

I met the same problem. Could you tell me how did you solve THC_LIBRARY NOTFOUND error?

[bgshih]

@wew2012 Did you install Torch7 in the home directory (by default it is)? Also, where is your libTHC.so? You can find it by locate libTHC.so.

[wew2012]

@bgshih Yes, I install Torch7 in ${home}/torch. But there isn't a gpu in my computer. Does it matter?

[bgshih]

@wew2012 I haven't tested it under CPU-only environment. Maybe you can try removing the THC dependencies by removing https://github.com/bgshih/crnn/blob/master/src/cpp/CMakeLists.txt#L20-L21

[bgshih]

@wew2012 CRNN should be able to run on CPU, but some modifications are required. Currently, it won't run without a GPU.

[wew2012]

@bgshih Actually, I tried to compile without THC. However, it didn't pass. Is any modifications needed besides the modifications of files in crnn/src/cpp? If not too much modifications needed, I want to have a try.

[bgshih]

@wew2012 It could require a non-trivial amount of work to make CRNN GPU-free. If you are going to try, I suggest starting from model/crnn_demo/config.lua, the cudnn should be replaced by nn. Then you might have to solve some other issues.

[wew2012]

@bgshih All right, I think I'd better give up.

[PythonImageDeveloper]

Hi ll36771 , my system ubuntu 16.04
in this directory : cd crnn/src/ ,
when i use sh build_cpp.sh , i faced with this error :

mm@mm:~/TextBoxes_plusplus/crnn/src$ sh build_cpp.sh
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Try OpenMP C flag = [-fopenmp]
-- Performing Test OpenMP_FLAG_DETECTED
-- Performing Test OpenMP_FLAG_DETECTED - Success
-- Try OpenMP CXX flag = [-fopenmp]
-- Performing Test OpenMP_FLAG_DETECTED
-- Performing Test OpenMP_FLAG_DETECTED - Success
-- Found OpenMP: -fopenmp
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
LUAT_LIBRARY
linked by target "crnn" in directory /home/mm/TextBoxes_plusplus/crnn/src/cpp
THC_LIBRARY
linked by target "crnn" in directory /home/mm/TextBoxes_plusplus/crnn/src/cpp
THPP_LIBRARY
linked by target "crnn" in directory /home/mm/TextBoxes_plusplus/crnn/src/cpp
TH_LIBRARY
linked by target "crnn" in directory /home/mm/TextBoxes_plusplus/crnn/src/cpp

-- Configuring incomplete, errors occurred!
See also "/home/mm/TextBoxes_plusplus/crnn/src/cpp/build/CMakeFiles/CMakeOutput.log".
make: *** No targets specified and no makefile found. Stop.
cp: cannot stat '*.so': No such file or directory