Torch7: A problem when I install loadcaffe

[hhwhbf]

Hi,I attempt to use torch to run a program which need "loadcaffe",but when I use this command "luarocks install loadcaffe",the system show these error message.

Installing https://raw.githubusercontent.com/torch/rocks/master/loadcaffe-1.0-0.rockspec...
Using https://raw.githubusercontent.com/torch/rocks/master/loadcaffe-1.0-0.rockspec... switching to 'build' mode
正克隆到 'loadcaffe'...
remote: Counting objects: 18, done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 18 (delta 0), reused 5 (delta 0), pack-reused 0
接收对象中: 100% (18/18), 19.28 KiB | 0 bytes/s, 完成.
检查连接... 完成。
cmake -E make_directory build;
cd build;
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/home/tf802/torch/install/bin/.." -DCMAKE_INSTALL_PREFIX="/home/tf802/torch/install/lib/luarocks/rocks/loadcaffe/1.0-0";
make

-- 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
-- Found Torch7 in /home/tf802/torch/install
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
CMake Error at /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
Could NOT find Protobuf (missing: PROTOBUF_LIBRARY PROTOBUF_INCLUDE_DIR)
Call Stack (most recent call first):
/usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)
/usr/share/cmake-3.5/Modules/FindProtobuf.cmake:308 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:7 (FIND_PACKAGE)

-- Configuring incomplete, errors occurred!
See also "/tmp/luarocks_loadcaffe-1.0-0-6537/loadcaffe/build/CMakeFiles/CMakeOutput.log".
See also "/tmp/luarocks_loadcaffe-1.0-0-6537/loadcaffe/build/CMakeFiles/CMakeError.log".
make: * 没有指明目标并且找不到 makefile。 停止。

Error: Build error: Failed building.

well,I don't know how to solve this problem.Could you help me?
Thanks.
PS:I am a learner from China,this is why the message above contain Chinese character and my English presentation skill is limited.Thank you for your read and forgive.

[albanD]

The error message says it can't find the Protobuf library,
Did you follow the installation instructions from loadcaffe ?

[hhwhbf]

@albanD wow,I forgot to execute "sudo apt-get install libprotobuf-dev protobuf-compiler" firstly but directly execute ''luarocks install loadcaffe''. Now the problem has been solved,thank you!
It is really a pleasant experience writing an issue in github firstly.