A valid Caffe installation was not found on your system. Use the envvar CAFFE_ROOT to indicate a valid installation.

[sangthian]

# when I input ./digits-devserver, an error occur,

# this is the error information, my caffe is in /home/mx/caffe/

A valid Caffe installation was not found on your system.
Use the envvar CAFFE_ROOT to indicate a valid installation.
Traceback (most recent call last):
File "./digits-devserver", line 8, in
import digits.config
File "/home/mx/digits/digits/config/init.py", line 7, in
from . import caffe
File "/home/mx/digits/digits/config/caffe.py", line 227, in
executable, version, flavor = load_from_path()
File "/home/mx/digits/digits/config/caffe.py", line 51, in load_from_path
raise ValueError('Caffe executable not found in PATH')
ValueError: Caffe executable not found in PATH

[gheinrich]

Hello, with #1091 merged now you need to use environment variables to configure DIGITS. The environment variables are listed there. In your case you need to set the CAFFE_ROOT variable: export CAFFE_ROOT=/home/mx/caffe/.

[sangthian]

Thanks very much ,but every time I use digits,I must input CAFFE_ROOT=/home/mx/caffe/ in terminal,
maybe I should write the environment variables into a file, how to do it?

[lukeyeager]

# These instructions are for bash
$ echo $SHELL
/bin/bash

# Check the current value of your envvar
$ echo $CAFFE_ROOT

# Add the envvar to ~/.profile so it will load automatically when you login
$ echo "export CAFFE_ROOT=/home/username/caffe/" >> ~/.profile

# Load the new configuration
$ source ~/.profile

# Check the new envvar value
$ echo $CAFFE_ROOT
/home/username/caffe/

If you need more help or if you use a different shell, you can probably find what you need via Google. Setting environment variables is a good skill to learn.

[drcrook1]

I am having the same problem, however I have completed these steps and I have CAFFE_ROOT pointing to the correct place. #1390

[lukeyeager]

Did you install with a deb package? If so, please follow these instructions for changing the configuration:
https://github.com/NVIDIA/DIGITS/blob/digits-5.0/docs/UbuntuInstall.md#troubleshooting

[jcAxe]

In my case, when I try to set a CAFFE_ROOT value, it says my path is not valid for some reason.
And CAFFE_ROOT is empty. I installed my caffe through aptitude dependencies of CUDA, and I need to upgrade it to 0.16v in order to fix a GPU memory error.

[ericdhillon]

I have installed all of the prerequisites. I have the CAFFE_ROOT in /home/user/caffe which is a path.

| _ / | | / |
| |) | | ( || | | | _
|/|| || |___/ 6.1.1

A valid Caffe installation was not found on your system.
Use the envvar CAFFE_ROOT to indicate a valid installation.
Traceback (most recent call last):
File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
"main", fname, loader, pkg_name)
File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/home/mikulis/digits/digits/main.py", line 70, in
main()
File "/home/mikulis/digits/digits/main.py", line 53, in main
import digits.config
File "digits/config/init.py", line 7, in
from . import ( # noqa
File "digits/config/caffe.py", line 230, in
executable, version, flavor = load_from_path()
File "digits/config/caffe.py", line 54, in load_from_path
raise ValueError('Caffe executable not found in PATH')
ValueError: Caffe executable not found in PATH

thank you so much,
eric