Invalid MEX-file '/path/to/rcnn/external/caffe/matlab/caffe/caffe.mexa64': libcudart.so.6.0: cannot open shared object file: No such file or directory

[zyzhong]

I have CUDA 5.5 and CUDA 6.0 installed in /usr/local/, and the LD_LIBRARY_PATH to libcudart.so.6.0 is correct.
I run "make runtest" and it passed, but failed to run /caffe.mexa64.
Actually when I run sudo ldd ./caffe.mexa64, it said libcudart.so.6.0 not found.
Should I uninstall CUDA 5.5 first? Any suggestion?
FYI, after I mv /usr/local/cuda-5.5 away, I can't make caffe successfully because libopencv_core.so need the libcudart.so.5.5

[wuqiangch]

/path/to/ means your own paht. You must replace it with your own path.

[tackgeun]

I've experienced similar situation, finally I found out that the setting of "LD_LIBRARY_PATH" didn't work in some case after I look up the value of "LD_LIBRARY_PATH".
I think the command
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/libcudart
might be working in this case.

[shelhamer]

It's important to make sure your compilation and runtime paths are the same by properly setting your Makefile.config include and library paths along with your environments LD_LIBRARY_PATH.

Please ask any follow-up questions on the caffe-users mailing list. As of the latest release we prefer to keep issues reserved for Caffe development. Thanks!

[urumican]

Hi, I just have one question. Where can I find LD_LIBRARY_PATH and PATH variables?

[seanbell]

Please ask usage questions to the caffe-users mailing list.

That being said, here's a tutorial on linux variables like PATH: http://www.linfo.org/path_env_var.html