Question 112134 in Ubuntu Question posted in
The official Ubuntu documentation can be found here.

dotnet sdk is installed but not recognized – Linux Ubuntu/popOS 22.04

I had the dotnet sdk working just fine yesterday, today when I login to my PC, I update the system and VSCode and then when I tried running dotnet watch run, I got this error:

  * You intended to execute a .NET application:
      The application 'watch' does not exist.
  * You intended to execute a .NET SDK command:
      No .NET SDKs were found.

Download a .NET SDK:
https://aka.ms/dotnet-download

Learn about SDK resolution:
https://aka.ms/dotnet/sdk-not-found

Here is what happens when I try to do an apt install of the sdk(It shows already installed):

sudo apt install dotnet-sdk-6.0
[sudo] password for robinson: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
dotnet-sdk-6.0 is already the newest version (6.0.400-1).
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

Here is my dotnet --info:

global.json file:
  Not found

Host:
  Version:      6.0.8
  Architecture: x64
  Commit:       55fb7ef977

.NET SDKs installed:
  No SDKs were found.

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.8 [/usr/lib/dotnet/dotnet6-6.0.108/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.8 [/usr/lib/dotnet/dotnet6-6.0.108/shared/Microsoft.NETCore.App]

From my googling, it seems it may be PATH issue, but I tried adding a few different paths and it still didn’t work.
here is the which dotnet:

/usr/bin/dotnet

And my echo path:

/home/robinson/.nvm/versions/node/v18.7.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/robinson/.dotnet/tools

I’m a linux noob, any help is appreciated. I’m running popOS on an x64 computer.

Tags:

9

Answers


  1. Chosen as BEST ANSWER
    0

    So I ended up solving the issue as well by doing the following: I uninstalled everything I could that was dotnet related with: sudo apt remove 'dotnet*' Then I did a sudo apt autoremove and sudo apt update.

    Then I followed the instructions on this link to unpack the binaries straight into the /opt/ folder. Once I added the necessary lines to PATH (according to the instructions in the link), everything worked as expected.

    I would however recommend following the instructions by Saranga first as using the package manager might be the better solution. Thank you everyone.


  2. 0

    I had the same problem, and here’s what I did to resolve it.

    1. Removed all .NET packages
      sudo apt remove 'dotnet*'
      sudo apt remove 'aspnetcore*'

    2. Deleted PMC repository from APT, by deleting the repo .list file
      sudo rm /etc/apt/sources.list.d/microsoft-prod.list

    3. Ran sudo apt update

    4. Installed .NET 6 SDK via sudo apt install dotnet-sdk-6.0

    This is one of the solutions provided on the Github issues page for dotnet/core, please follow the original article if the above did not work for you.
    https://github.com/dotnet/core/issues/7699

    Login or Signup to reply.
  3. 0

    Check list of dotnet versions installed on your machine and check for other than the SDK, if any other dotnet sdk/runtime is installed on your machine.

    dotnet --list-sdks

    If there is multiple dotnet versions installed, theres a chance your default dotnet version is pointing to other versions, So change it

    dotnet new globaljson --sdk-version 6.0.400-1 --force

    Also you use the dotnet-core-uninstall tool to remove the not-required version of dotnet to get rid of the version issue. Note that you have to install it manually as it not part of the sdk/runtime.

    dotnet -core-uninstall --all-previews-but-latest --sdk
    Login or Signup to reply.
  4. 0

    There is some package version issue, use this to get dotnet-sdk working again

    Update

    Dotnet is now part of some ubuntu repo and there are glitches on dist upgrading ubuntu, using https://github.com/dotnet/core/issues/7699#issuecomment-1288131522 removes the ms repo, its packages and installs dotnet from the canonical repo.

    sudo snap remove dotnet-sdk
sudo apt remove 'dotnet*'
sudo apt remove 'aspnetcore*'
sudo apt remove 'netstandard*'
sudo rm /etc/apt/sources.list.d/microsoft-prod.list
sudo rm /etc/apt/sources.list.d/microsoft-prod.list.save
sudo apt update
sudo apt install dotnet6

    Old

    $ sudo apt install aspnetcore-runtime-6.0=6.0.8-1 dotnet-apphost-pack-6.0=6.0.8-1 dotnet-host=6.0.8-1 dotnet-hostfxr-6.0=6.0.8-1 dotnet-runtime-6.0=6.0.8-1 dotnet-sdk-6.0=6.0.400-1 dotnet-targeting-pack-6.0=6.0.8-1

    I hope that will be fixed soon. 🤞

    https://github.com/dotnet/core/issues/7699 brings some light into the issue.

    Login or Signup to reply.
  5. 0

    in my case it was already installed, but it did not recognize it because it was in another location apparently.

    https://learn.microsoft.com/es-es/dotnet/core/install/linux-snap

    According to the documentation, I installed it through snap and this was the solution with this command

    sudo ln -s /snap/dotnet-sdk/current/dotnet /usr/local/bin/dotnet

    in UBUNTU 22.04, .NET6.0

    Login or Signup to reply.
  6. 0

    Seems to be an issue with the latest version, i just removed dotnet entirely and reinstalled dotnet sdk 6.0 and everything is working again.
    Be sure to use sudo apt install dotnet-sdk-6.0 to specify the 6.0 version and not the latest

    Login or Signup to reply.
  7. 0

    Here’s what I did to fix it:

    Removed all .NET packages

    sudo apt remove 'dotnet*'

    sudo apt remove 'aspnetcore*'

    Deleted PMC repository from APT, by deleting the repo .list file

    sudo rm /etc/apt/sources.list.d/microsoft-prod.list

    Ran

    sudo apt update

    Installed .NET 6 SDK via the install script:

    (follow the instructions carefully!)

    https://learn.microsoft.com/en-us/dotnet/core/install/linux-scripted-manual#scripted-install

    Modified my ~/.bashrc so at the end of the file it has:

    export PATH="$PATH:/home/INSERT_YOUR_USERNAME_HERE/.dotnet"

    Now everything is working again.

    Login or Signup to reply.
  8. 0

    You need to setup your DOTNET_ROOT according to Base Path: /usr/share/dotnet/sdk/7.0.101/

    osanhaji@5CD2068Y53:~ $ dotnet --info
.NET SDK:
 Version:   7.0.101
 Commit:    bb24aafa11

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  22.04
 OS Platform: Linux
 RID:         ubuntu.22.04-x64
 Base Path:   /usr/share/dotnet/sdk/7.0.101/

Host:
  Version:      7.0.1
  Architecture: x64
  Commit:       97203d38ba

.NET SDKs installed:
  7.0.101 [/usr/share/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 7.0.1 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 7.0.1 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
  None

Environment variables:
  DOTNET_ROOT       [/usr/share/dotnet/]

global.json file:
  Not found

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download


    osanhaji@5CD2068Y53:~ $ export DOTNET_ROOT=/usr/share/dotnet/
    Login or Signup to reply.
  9. 0

    Even after fully uninstalling according to the instructions, I had /etc/profile.d/dotnet.sh pointing DOTNET_ROOT to /usr/lib/dotnet. I modified the file to point to /usr/share/dotnet. That fixed the issue for me. I guess the full uninstall didn’t fully uninstall .NET.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search