package nvidia-cuda-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/include/cublas.h', which is also in package libcublas-dev 10.2.1.243-1

[Alexander Slesarev]

When I tried to install nvidia cuda using 'sudo apt install nvidia-cuda-toolkit' I got error

'Unpacking nvidia-cuda-dev (9.1.85-3ubuntu1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-yfgAsd/31-nvidia-cuda-dev_9.1.85-3ubuntu1_amd64.deb (--unpack):
 trying to overwrite '/usr/include/cublas.h', which is also in package libcublas-dev 10.2.1.243-1
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)'

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: nvidia-cuda-dev (not installed)
ProcVersionSignature: Ubuntu 5.0.0-27.28~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
Date: Thu Oct 3 19:59:18 2019
ErrorMessage: trying to overwrite '/usr/include/cublas.h', which is also in package libcublas-dev 10.2.1.243-1
InstallationDate: Installed on 2019-08-17 (47 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
Python3Details: /usr/bin/python3.6, Python 3.6.8, python3-minimal, 3.6.7-1~18.04
PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.2
 apt 1.6.11
SourcePackage: nvidia-cuda-toolkit
Title: package nvidia-cuda-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/include/cublas.h', which is also in package libcublas-dev 10.2.1.243-1
UpgradeStatus: No upgrade log present (probably fresh install)

[Graham Inggs (ginggs)]

It looks like you have installed a libcublas-dev package which is not in the Ubuntu archive, and this package does not correctly declare its relation to packages in the Ubuntu archive.

Please remove the libcublas-dev package and try installing nvidia-cuda-toolkit again.

[Q. Haas (qhaas)]

Getting the same error here on a Kepler era GPU in Ubuntu 18.04.3 when deploying CUDA 10.2. I did a fresh install of the OS, followed the network deployment here:
https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1804&target_type=debnetwork

Still got the following when installing 'nvidia-cuda-toolkit'
```
Unpacking nvidia-cuda-dev (9.1.85-3ubuntu1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-WHtitL/233-nvidia-cuda-dev_9.1.85-3ubuntu1_amd64.deb (--unpack):
 trying to overwrite '/usr/include/cublas.h', which is also in package libcublas-dev 10.2.2.89-1
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-WHtitL/233-nvidia-cuda-dev_9.1.85-3ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
```

[Q. Haas (qhaas)]

Looks like 'nvidia-cuda-toolkit' isn't needed, only 'cuda'