# The package system is broken

## post by ed_sung on Mar 3, 2020

Updating the software using Ubuntu’s software updater and got the following message:

**The package system is broken:**

Check if you are using third party repositories. If so disable them, since they are a common source of problems.

Furthermore run the following command in a Terminal: `apt-get install -f`

Transaction failed: The package system is broken

The following packages have unmet dependencies:

- **cuda-libraries-dev-10-2:** Depends: `libcublas-dev` (>= 10.2.2.89) but it is not installed
- **cuda-samples-10-2:** Depends: `libcublas-dev` (>= 10.2.2.89) but it is not installed
- **cuda-visual-tools-10-2:** Depends: `libcublas-dev` (>= 10.2.2.89) but it is not installed

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## post by alpha_u on Jan 10, 2021

hi [@ed_sung](https://deeptalk.lambda.ai/u/ed_sung),

I am facing a similar issue on my tensorbook. It seems like the lambda stack’s installation is conflicting with the installation of `libcublas-dev`. Were you able to resolve this?

Here’s the error I am getting on running `sudo apt --fix-broken install` :

```
Unpacking libcublas-dev (10.2.2.89-1) ...  
dpkg: error processing archive /var/cuda-repo-10-2-local-10.2.89-440.40/./libcublas-dev_10.2.2.89-1_amd64.deb (--unpack):  
 trying to overwrite '/usr/include/cublas_v2.h', which is also in package nvidia-cuda-dev:amd64 10.0.130-0lambda3  
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)  
Errors were encountered while processing:  
 /var/cuda-repo-10-2-local-10.2.89-440.40/./libcublas-dev_10.2.2.89-1_amd64.deb  
E: Sub-process /usr/bin/dpkg returned an error code (1)
```

Thanks!