protoc: No such file or directory when running make all on MAC

[Coldmooon]

I followed the instructions to install caffe on mac. But I have got the error while running make all. The error message is :

$ make all
protoc --proto_path=src --cpp_out=build/src src/caffe/proto/caffe.proto
make: protoc: No such file or directory
make: *** [build/src/caffe/proto/caffe.pb.cc] Error 1

Then I cd the directory , src/caffe/proto/caffe, checking if there is caffe.proto. There is.
I've installed prerequisites. Here is my brew list:

$ brew list
arpack      ctags       gmp4        mpfr2       python
boost       gdb             hdf5                openblas            readline
brew-cask   gdbm        isl011      openssl     snappy
cloog018            gflags      leveldb     pkg-config  sqlite
cmake       glog                libmpc08            protobuf             szip

Can anyone help me solve this ? Many thanks ~~

[shelhamer]

What does which protoc give you? Make sure that your PATH includes
/usr/local/bin so that you can actually run your homebrew dependencies.

On Fri, Jul 4, 2014 at 10:19 AM, Coldmooon notifications@github.com wrote:

I followed the instructions to install caffe on mac. But I have got the
error while running "make all". The error message is :
$ make all
protoc --proto_path=src --cpp_out=build/src src/caffe/proto/caffe.proto
make: protoc: No such file or directory
make: *** [build/src/caffe/proto/caffe.pb.cc] Error 1

Then I cd the directory , "src/caffe/proto/caffe", checking if there is
caffe.proto. There is.
I've installed prerequisites. Here is my brew list:
$ brew list
arpack ctags gmp4 mpfr2 python
boost gdb hdf5 openblas readline
brew-cask gdbm isl011 openssl snappy
cloog018 gflags leveldb pkg-config sqlite
cmake glog libmpc08 protobuf szip

Can anyone help me solve this ? Many thanks ~~

—
Reply to this email directly or view it on GitHub
#617.

[Coldmooon]

Thank you, shelhamer. Inspired by you , I check the directory where protobuf installed and found protoc there. It was just because brew didn't make symbolic link of protoc. Then I typed brew link protobuf. The error message disappeared.

But, unfortunately, I've got a new error:

./include/caffe/util/mkl_alternate.hpp:13:10: fatal error: 'cblas.h' file not  found
#include <cblas.h>
1 error generated.
make: *** [build/src/caffe/blob.o] Error 1

I've found cblas.h is in /usr/local/Cellar/openblas/0.2.9-rc2/include. I try to use the same way to brew link openblas.
When I check the information about openblas, I got warning :

This formula is keg-only.
Mac OS X already provides this software and installing another version in
parallel can cause all kinds of trouble.

Should I continue to brew link openblas ？？

[Coldmooon]

cblas.h problem has been solved. I just edited two lines in makefile.config:

BLAS_INCLUDE := /usr/local/Cellar/openblas/0.2.9-rc2/include
BLAS_LIB := /usr/local/Cellar/openblas/0.2.9-rc2/lib

Now, I have a new error about cv:imread.

clang: warning: argument unused during compilation: '-pthread'
ld: warning: directory not found for option '-L/usr/local/cuda/lib64'
Undefined symbols for architecture x86_64:
  "cv::imread(std::string const&, int)", referenced from:
      void* caffe::WindowDataLayerPrefetch<float>(void*) in window_data_layer.o
      void* caffe::WindowDataLayerPrefetch<double>(void*) in window_data_layer.o
      caffe::ReadImageToDatum(std::string const&, int, int, int, caffe::Datum*) in io.o
ld: symbol(s) not found for architecture x86_64

Before installing caffe, I've installed opencv from source code and have been using opencv correctly in some projects. So , I didn't reinstall opencv using brew when installing caffe. Is this the main reason I got the error? If so , how can I uninstall opencv which is compiled from source code by myself?

My opencv's configuration is:

$ pkg-config --cflags opencv
-I/usr/local/include/opencv -I/usr/local/include 

$ pkg-config --libs opencv
/usr/local/lib/libopencv_calib3d.dylib /usr/local/lib/libopencv_contrib.dylib /usr/local/lib/libopencv_core.dylib /usr/local/lib/libopencv_features2d.dylib /usr/local/lib/libopencv_flann.dylib /usr/local/lib/libopencv_gpu.dylib /usr/local/lib/libopencv_highgui.dylib /usr/local/lib/libopencv_imgproc.dylib /usr/local/lib/libopencv_legacy.dylib /usr/local/lib/libopencv_ml.dylib /usr/local/lib/libopencv_nonfree.dylib /usr/local/lib/libopencv_objdetect.dylib /usr/local/lib/libopencv_ocl.dylib /usr/local/lib/libopencv_photo.dylib /usr/local/lib/libopencv_stitching.dylib /usr/local/lib/libopencv_superres.dylib /usr/local/lib/libopencv_ts.a /usr/local/lib/libopencv_video.dylib /usr/local/lib/libopencv_videostab.dylib

[sujaynarumanchi]

@Coldmooon
Hi, I have the same error as you do. I am using a Mac OS X, with boost 1.55

Undefined symbols for architecture x86_64:
"cv::imread(std::string const&, int)", referenced from:
void* caffe::WindowDataLayerPrefetch(void_) in window_data_layer.o
void_ caffe::WindowDataLayerPrefetch(void_) in window_data_layer.o
caffe::ReadImageToDatum(std::string const&, int, int, int, caffe::Datum_) in io.o
"google::protobuf::MessageLite::ParseFromString(std::string const&)", referenced from:
caffe::DataLayer::SetUp(std::vectorcaffe::Blob<float_, std::allocatorcaffe::Blob<float_> > const&, std::vectorcaffe::Blob<float_, std::allocatorcaffe::Blob<float_> >) in data_layer.o
void caffe::DataLayerPrefetch(void_) in data_layer.o
caffe::DataLayer::SetUp(std::vectorcaffe::Blob<double_, .........

Were you able to fix it?

[shelhamer]

@Coldmooon glad you figured out the BLAS issue -- thanks for documenting your configuration here.

Your OpenCV error is because your original install of OpenCV is almost certainly not built with libstdc++ instead of libc++. libstdc++ is required for CUDA, but libc++ is the standard on OS X 10.9. You need to recompile OpenCV with libstdc++ for Caffe.

Refer to the installation guide for more details.

[kerkilchoi]

@shelhamer I am getting the same error as @Coldmooon despite that I brew installed OpenCV (2.4.10) with the modified formula to build with libstdc++. I am currently running Mac OSX Yosemite and buildling Caffe with cuDNN R2 and CUDA 7.0. Could you provide some help?

Here is a part of the error message:

Undefined symbols for architecture x86_64:
  "cv::imread(std::string const&, int)", referenced from:
      caffe::WindowDataLayer<float>::InternalThreadEntry() in window_data_layer.o
      caffe::WindowDataLayer<double>::InternalThreadEntry() in window_data_layer.o
      caffe::ReadImageToDatum(std::string const&, int, int, int, bool, caffe::Datum*) in io.o
  "caffe::PowerLayer<double>::LayerSetUp(std::__1::vector<caffe::Blob<double>*, std::__1::allocator<caffe::Blob<double>*> > const&, std::__1::vector<caffe::Blob<double>*, std::__1::allocator<caffe::Blob<double>*> >*)", referenced from:
      vtable for caffe::PowerLayer<double> in power_layer.cuo
  "caffe::PowerLayer<double>::Forward_cpu(std::__1::vector<caffe::Blob<double>*, std::__1::allocator<caffe::Blob<double>*> > const&, std::__1::vector<caffe::Blob<double>*, std::__1::allocator<caffe::Blob<double>*> >*)", referenced from:
      vtable for caffe::PowerLayer<double> in power_layer.cuo
  "caffe::PowerLayer<double>::Forward_gpu(std::vector<caffe::Blob<double>*, std::allocator<caffe::Blob<double>*> > const&, std::vector<caffe::Blob<double>*, std::allocator<caffe::Blob<double>*> >*)", referenced from:
      vtable for caffe::PowerLayer<double> in layer_factory.o
      vtable for caffe::PowerLayer<double> in lrn_layer.o
      vtable for caffe::PowerLayer<double> in power_layer.o

[Coldmooon]

@kerkilchoi, if you are sure you built opencv with libstdc++, this error might be due to other dependences built with libc++. I've solved this problem by uninstalling all of related dependences and reinstalled them. You can run the following command in terminal to quickly uninstall dependences.
rm -rf /usr/local/Cellar && brew prune. I refer you to the issue #1740, #1310, #915, #1212, #1358, #454.

[zarzen]

I've got the similar problem. I followed the installation instruction, which says that "CUDA 7 is strongly suggested. Older CUDA require libstdc++ while clang++ is the default compiler and libc++ the default standard library on OS X 10.9+. ". So I installed cuda7, by updating from cuda6.5. Then install opencv via brew install opencv after brew tap homebrew/science.
When I step to compilation, run make all at caffe root, I got this error message:

No receipt for 'com.apple.pkg.CLTools_Executables' found at '/'.
CXX src/caffe/blob.cpp
In file included from src/caffe/blob.cpp:4:
In file included from ./include/caffe/blob.hpp:10:
In file included from ./include/caffe/syncedmem.hpp:7:
In file included from ./include/caffe/util/math_functions.hpp:11:
./include/caffe/util/mkl_alternate.hpp:11:10: fatal error: 'cblas.h' file not found
#include <cblas.h>
         ^
1 error generated.
make: *** [.build_release/src/caffe/blob.o] Error 1

I've searched for solution, someone says that Makefile should be modified. But seems that solution is out of date.

[Hiyorimi]

I'm encountering error

Undefined symbols for architecture x86_64:
"cv::imread(std::string const&, int)", referenced from:
caffe::WindowDataLayer::InternalThreadEntry() in window_data_layer.o
caffe::WindowDataLayer::InternalThreadEntry() in window_data_layer.o

Though all packets were installed with brew

$ brew list:
boost
cmake
eigen
gcc
gflags
glog
gmp
hdf5
ilmbase
isl
jpeg
leveldb
libmpc
libpng
libtiff
lmdb
mpfr
numpy
openblas
opencv
openexr
openssl
protobuf
snappy
szip
wget

[keltysf]

In response to the error

./include/caffe/util/mkl_alternate.hpp:13:10: fatal error: 'cblas.h' file not  found
#include <cblas.h>

I found simply running

brew install openblas

fixed it for me.

[christopher5106]

xcode-select --install did solve the error 'cblas.h' file not found for me

http://christopher5106.github.io/big/data/2015/07/16/deep-learning-install-caffe-cudnn-cuda-for-digits-python-on-mac-osx.html