E: Unable to locate package -DUSE_CUDA

[jameszhou-gl]

Hi,everyone.When I was building GPU support on ubuntu16.04 LTS like the these steps shown in the picture(from official website http://xgboost.readthedocs.io/en/latest/build.html).

when i run the "cmake .. -DUSE_CUDA=ON",it turns out that "E: Unable to locate package -DUSE_CUDA".
How can I solve the problem?Thanks

[LeoLee1]

In my case, I should use the git command like the below.
git clone **--recursive** https://github.com/dmlc/xgboost
And then try to build it again. Hope to help the installation for you.