Running dcgan example

Hi
I have installed pytorch via python3 setup.py install and the last lines are


writing top-level names to torch.egg-info/top_level.txt
writing manifest file 'torch.egg-info/SOURCES.txt'
reading manifest file 'torch.egg-info/SOURCES.txt'
writing manifest file 'torch.egg-info/SOURCES.txt'
Copying torch.egg-info to /usr/local/lib/python3.6/dist-packages/torch-1.2.0a0+08a0ac8-py3.6.egg-info
running install_scripts
Installing convert-caffe2-to-onnx script to /usr/local/bin
Installing convert-onnx-to-caffe2 script to /usr/local/bin

As I run dcgan example, the cmake command fails

mahmood@u1804:build$ cmake -DCMAKE_PREFIX_PATH=/usr/local/lib/python3.6/dist-packages/torch/lib/libtorch.so ..
-- The C compiler identification is GNU 7.4.0
-- The CXX compiler identification is GNU 7.4.0
-- 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
CMake Error at CMakeLists.txt:4 (find_package):
  By not providing "FindTorch.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Torch", but
  CMake did not find one.

  Could not find a package configuration file provided by "Torch" with any of
  the following names:

    TorchConfig.cmake
    torch-config.cmake

  Add the installation prefix of "Torch" to CMAKE_PREFIX_PATH or set
  "Torch_DIR" to a directory containing one of the above files.  If "Torch"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/home/mahmood/cactus/pt/pytorch/examples/cpp/dcgan/build/CMakeFiles/CMakeOutput.log".

How can I fix that?