If I try building the newest version of Caffe, it leads to this error:
$ make all
CXX/LD -o .build_release/tools/caffe.bin
clang: warning: argument unused during compilation: '-pthread'
Undefined symbols for architecture x86_64:
"caffe::Net<float>::Forward(float*)", referenced from:
test() in caffe.o
time() in caffe.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [.build_release/tools/caffe.bin] Error 1
I'm building on osx, OpenBLAS, and CPU_ONLY. I found a kind of similar issue on here but it appears to have been a resolved issue, and I'm not getting the exact same error, though perhaps it's related? I can also build and run an older version of Caffe from a month ago, so I think something has changed very recently.
Any ideas on how to overcome this error?
It shows a link problem when compile.On osx this problem will happen usually.I guess the problem happened in Makefile.config.You can change to
# To customize your choice of compiler, uncomment and set the following.
# N.B. the default for Linux is g++ and the default for OSX is clang++
CUSTOM_CXX := g++
and confirm some path is correct.
I had exactly the same problem. Its now resolved.
Do check if you already have a libcaffe.so in your system library paths (maybe /usr/local/lib). If so, delete the existing libcaffe.so and build again.
Related
I am trying to compile file which have GFLAGS inside.
My compiling command :
g++ -I ../eigen-eigen-b9cd8366d4e8/ -I/caffe_path/distribute/include my_file.cpp -std=c++0x -lpthread -lglog -lboost_system -DUSE_OPENCV
My error message is:
/usr/bin/ld: /tmp/ccv5GAaZ.o: undefined reference to symbol '_ZN6google26ShowUsageWithFlagsRestrictEPKcS1_'
//usr/lib/x86_64-linux-gnu/libgflags.so.2: error adding symbols: DSO missing from command line
It is my first time working with Gflags. Based on the suggestion on internet i tried to comment lines with#ifndef and #endif in the following lines but it did not help.
#ifndef GFLAGS_GFLAGS_H_
namespace gflags = google;
#endif
I also tried suggestions on this thread , but it did not fix anything.
The gflags installed inside the caffe and seperately were somehow causing conflict. Uninstalling any of them did not help. Solution for me was uninstallation (all) of the whole caffe and gflags (internals and externals) solved the problem. When I was sure that there is no trace of gflags/glogs and caffe on my system I was able to install caffe again.
I compiled caffe successfully at first and tried the MNIST example. But there is something wrong when I tried to install pycaffe. So I reinstalled caffe. However I received compiling error this time.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
make: *** [.build_release/lib/libcaffe.so.1.0.0] Error 1
After I input the command 'clang -v'
Target: x86_64-apple-darwin16.5.0
Thread model: posix
InstalledDir:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
I figured out it was the problem between two version of python. The system default version and the anaconda one. You have to make sure the compiling and executing using the same one.
I've configured Caffe environment on my Mac for several times. But this time I encountered a problem I've never met before:
I use Intel's MKL for accelerating computation instead of ATLAS, and I use Anaconda 2.7 and OpenCV 2.4, with Xcode 7.3.1 on OS X 10.11.6.
when I
make all -j8
in terminal under Caffe's root directory, the error info is:
AR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0-rc5
clang: warning: argument unused during compilation: '-pthread'
ld: can't map file, errno=22 file '/usr/local/cuda/lib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [.build_release/lib/libcaffe.so.1.0.0-rc5] Error 1
make: *** Waiting for unfinished jobs....
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .build_release/lib/libcaffe.a(parallel.o) has no symbols
I've tried many times, does anyone can help me out?
This looks like you haven't changed Makefile.config from GPU to CPU mode. There shouldn't be anything trying to actively link that library. I think the only CUDA one you should need is libicudata.so
Look for the lines
# CPU-only switch (uncomment to build without GPU support).
# CPU_ONLY := 1
and remove the octothorpe from the front of the second line.
I trying to build an open source LLVM plugin (https://github.com/HewlettPackard/Atlas).
But when I try to build using the llvm plugin I get an "error: unable to load plugin... undefined symbol: _ZNK4llvm12FunctionPass17createPrinterPassERNS_11raw_ostreamERKSs" (llvm::FunctionPass::createPrinterPass).
This is likely caused by the different ABI problem mentioned here: undefined symbol for self-built llvm opt?, but building the plugin with -D_GLIBCXX_USE_CXX11_ABI=0 does not solve the problem.
I have Ubuntu 16.04. I tried clang version 3.6, 3.8 and 3.9 and the problem persists.
Building: (with clang++3.6, 3.8, 3.9, with and without -stdlib=libstdc++, with and without -D_GLIBCXX_USE_CXX11_ABI=0)
clang++-3.9 -D_GLIBCXX_USE_CXX11_ABI=0 -c src/Instrumentation/NvmInstrumenter.cpp -I/usr/lib/llvm-3.9/include -fPIC -std=c++11
clang++-3.9 -D_GLIBCXX_USE_CXX11_ABI=0 -shared NvmInstrumenter.o -o NvmInstrumenter.so
clang++-3.9 -Xclang -load -Xclang ./NvmInstrumenter.so -o oo -c ./r.cpp
The last line results in the undefined symbol error.
Any help would be greatly appreciated. Even suggestions on which direction to continue looking will help. Thanks.
After some more investigation, I found that I didn't put "-fno-rtti" during compilation. http://llvm.1065342.n5.nabble.com/llvm-dev-Undefined-symbol-error-while-running-the-pass-td92634.html
I'm trying to install CUDA 7.0 on Ubuntu 14.04. I've followed the installation instructions as outlined here. Specifically, I've followed steps in section 3.6 and Chapter 6. While compiling the examples (Section 6.2.2.2) using make, I'm getting the following error:
make[1]: Entering directory `/usr/local/cuda-7.0/samples/3_Imaging/cudaDecodeGL'
/usr/local/cuda-7.0/bin/nvcc -ccbin g++ -m64 -gencode arch=compute_20,
code=compute_20 -o cudaDecodeGL FrameQueue.o ImageGL.o VideoDecoder.o
VideoParser.o VideoSource.o cudaModuleMgr.o cudaProcessFrame.o
videoDecodeGL.o -L../../common/lib/linux/x86_64 -L/usr/lib/"nvidia-346"
-lGL -lGLU -lX11 -lXi -lXmu -lglut -lGLEW -lcuda -lcudart -lnvcuvid
/usr/bin/ld: cannot find -lnvcuvid
collect2: error: ld returned 1 exit status
make[1]: *** [cudaDecodeGL] Error 1
make[1]: Leaving directory `/usr/local/cuda-7.0/samples/3_Imaging/cudaDecodeGL'
make: *** [3_Imaging/cudaDecodeGL/Makefile.ph_build] Error 2
If you notice, there is -L/usr/lib/"nvidia-346". In my case, I have installed nvidia-349. What worked for me is to edit NVIDIA_CUDA-7.0_Samples/3_Imaging/cudaDecodeGL/findgllib.mk and change UBUNTU_PKG_NAME = "nvidia-346" to nvidia-349.
In order to properly install CUDA 7.0 on Ubuntu 14.04, you need a nvidia driver version 346 or higher.
If you're using the .deb installation method, the nvidia graphics driver is installed automatically.
If you used the .run file installation method and chose not to install the nvidia driver, you can manually install the driver afterwards through the package manager:
sudo apt-add-repository ppa:xorg-edgers/ppa && sudo apt-get update
sudo apt-get install nvidia-346 nvidia-346-dev nvidia-346-uvm libcuda1-346 nvidia-libopencl1-346 nvidia-icd-346
In my case, I installed nvidia-352 afterwards due to a bug in nvidia-346 and I stumbled upon the same error.
andoum's approach of manually changing the hard-coded UBUNTU_PKG_NAME = "nvidia-346" to UBUNTU_PKG_NAME = "nvidia-352" in NVIDIA_CUDA-7.0_Samples/3_Imaging/cudaDecodeGL/findgllib.mk worked fine for me.
I met the same issue and solution is that put path of nvidia into system path:
sudo gedit /etc/environment
add these path into environment
LIBRARY_PATH=/usr/lib/your_nvidia_edition:$LIBRARY_PATH
In fact I have encountered this problem when I made a make. I installed Cuda 8.0 under my Ubuntu 16.04. This problem had been confusing me for several weeks and I was almost tending to reinstall ubuntu for that after reviewing many suggestions via google, but finally I addressed it myself recently.
First of all, you should replace all the UBUNTU_PKG_NAME= ##nvidia-3xx## to the one of your actually installed nvidia driver version as recommended above. Then you will probably get compiling error after you do a new make. In my case, I have the link errors like
/usr/bin/ld: warning: libGLX.so.0, needed by /usr/lib/nvidia-
375/libGL.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libGLdispatch.so.0, needed by /usr/lib/nvidia-
375/libGL.so, not found (try using -rpath or -rpath-link)
....
or whatever contains missing link errors. Do locate the files you miss like
$ locate libGLX.so.
/usr/lib/nvidia-375/libGLX.so.0
/usr/lib32/nvidia-375/libGLX.so.0
$ locate libGLdispatch.so.0
/usr/lib/nvidia-375/libGLdispatch.so.0
/usr/lib32/nvidia-375/libGLdispatch.so.0
The error above is probably caused the compiling files cannot find in the default cuda libraries as you set, so you just need to copy the missing files to /usr/lib/nvidia-3xx/ (the actual path in your case) and this should work(it works in my case), if it doesn't maybe you could try to link the new add files to the one that need using a
$ sudo ln -s (requested file) (requesting file).
Hope this will help.