Snap install breaks tooling on Ubuntu 18.04 LTS

After installing the most recent .NET Core SDK with snap, there is an apparent mismatch between where tools are installed and where dotnet looks for installed tools.

After installing a tool like dotnet ef, the tool cannot be found by dotnet, and the dotnet tool list remains empty.

Steps to reproduce

First install the SDK:

sudo snap install dotnet-sdk --classic
sudo snap alias dotnet-sdk.dotnet dotnet

Then install tooling for EntityFrameworkCore (which should succeed):

dotnet tool install --global dotnet-ef

With a restarted session, even if the installation succeeded, the tool cannot be found:

dotnet ef --version

Could not execute because the specified command or file was not found.
Possible reasons for this include:
  * You misspelled a built-in dotnet command.
  * You intended to execute a .NET Core program, but dotnet-ef does not exist.
  * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

… and the tool listing remains empty:

dotnet tool list

Package Id      Version      Commands      Manifest
---------------------------------------------------

While dotnet cannot find the dotnet ef tool, it has been installed in /home/user/.dotnet/tools:

ls /home/${USER}/.dotnet/tools

dotnet-ef

… though this evidently isn’t where the snap-installation of dotnet is expecting the tools to be installed.

While I’m sure there’s a good reason for going with snap rather than apt-get installations, at least having the option to install the 3.1.102 version using apt-get would be a fitting workaround until the issue has been resolved.

System information:

• Ubuntu 18.04 LTS
• .NET Core SDK 3.1.102

[Fosol]

Finally the following fixed everything;

export DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1

It appears to work now.

[Fosol]

Regrettably I haven’t looked too closely at this for a while. All I know is the above resolved my issues at the time.