How to run VS Code development environment on Ubuntu - visual-studio-code

How can I run a development environment of VS Code. I would like to see when I am making any changes to the code. I have followed the VS Code 'How to Contribute' and installed everything on my Ubuntu machine.
I have also run on Docker using the noVNC. I can see the VS Code there but when I try to make any code changes, nothing is happening. Thanks.

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Elixir: VS Code ExUnit cannot find Mix

I cannot load or run my tests, from within VS Code.
I'm a new user to Elixir, and to VS Code. I'm running Lubuntu 21.10 (Impish). I've downloaded Erlang/OTP 25 (.deb), and Elixir 1.14 (precompiled binary in /usr/share/elixir), and can get anything I need running in a Bash terminal. Again, in a standard QTerminal window,
erl, iex, mix, elixir, etc. all work fine.
In VS Code, however, I get some errors. I feel stupid, but I'm coming from Sublime Text, so please forgive me.
In the left pane of VS Code, ExUnit shows an error (red):
Clicking on this error gives me this, on the bottom right pane. The command line options, passed to mix test, seem to be the default configuration:
This result is bizarre to me, because I can open the integrated terminal, execute /bin/sh, and then run the exact mix test line that's displayed:
/usr/share/elixir/bin has been added to my PATH variable, in ~/.bashrc, ~/.profile, and /etc/environment.
However, I am further confused by all tests being excluded, and wonder if there's some connection to the core issue:
Note that I can run my tests just fine, using different command line options. I've tried adding tags, but that didn't fix the problem.
I tried Google'ing this, and played around with my settings. Here is what I have configured in the "User" settings.json, and I made sure nothing overrides this in "Workspace" settings:
Changing the useNativeTesting setting doesn't solve the problem.
On another (?) note, I get a "failed to run elixir" upon VS Code startup:
Again, I have no problem running commands from a Linux terminal, or from a terminal within VS Code.
Plot twist: If I remove the precompiled Elixir 1.14, and downgrade to an older version, via apt, the problem goes away. But Lubuntu 21.10 doesn't offer Elixir 1.14, and I'm really into using the new dbg() feature.
But for now, I cannot load or run my tests, from within VS Code, apparently because Mix cannot be found.
Thanks to Daniel Imms, from the VS Code team, for answering my question on Twitter:
"Try moving where ever you init mix and elixir (.bashrc?) into your .bash_profile and then logging out and in again or restarting. I'm guessing it's in your bashrc which doesn't run in non-interactive sessions like in tasks."

When working with python, there is no output when I run vs code

For some reason I cannot run python in vs code. This problem is new. I have used vs code before without a problem. When I click run the code appears to run but there is no output. I assume there is a wrong setting somewhere, but I don't know where to start. I am new to vs code and python.

No debugger in VS code extension tests

I need to debug unit tests for an extension for VS Code but am not able to set any breakpoints. They are skipped all together when running tests, yet work when running the extension in debug mode.
Steps to reproduce:
I cloned https://github.com/microsoft/vscode-extension-samples.
code helloworld-test-example
run npm install and put random breaking points in the test.
When running the extension tests, the breaking points are not having any effect.
before running ext. tests
after running ext. tests
Any help will be appreciated a lot!
This might be an issue with Mac OS. I am able to debug with other IDE's when VS Code is closed. Seems that the second instance of VS Code is the issue when debugging with VS Code.
I replicated these steps on 2 mac OS systems, both with fresh installs and no other activated plugins.

Can't launch VS Code from Windows Terminal inside WSL 2

I installed VS Code using the Scoop package manager.
I get this error when launching VS Code from Windows Terminal, inside WSL 2:
My theory is that the error is caused because I used Scoop instead of the regular installer.
Should I use the regular VS Code installer from their website or can this error be fixed?
OK, so I uninstalled VS Code using Scoop and installed the regular installer from the VS Code website and now it works.
Seems the problem is with the Scoop VS Code installer.

Visual Studio Code Terminal bash vs. Ubuntu for Windows 10 bash

I just started with VS Code today as I have to prepare to port some of my code to Linux and I noticed that in the Terminal section there is the option of having a WSL bash, so I thought I could use this to compile my projects with gcc right there. I already installed Ubuntu for Windows 10 from the MSFT Store some time ago an installed several packages there. The thing is that the Ubuntu bash doesn't seem to share to the Linux workspace with the bash I see in VS Code, since in the latter I am lacking all those packages I already installed; it seems to be a completely different installation. Also, I noticed that the bash in the VS Code terminal uses German language while the Ubuntu App's bash is in English. (I have no idea why this is since Windows as well as VS Code is English.)
I'm quite confused about these differences, how do ubuntu.exe and bash.exe relate to each other? Can anybody shed some light on this? Obviously, it would be preferrable to to have only ONE Linux workspace in WSL so I don't have to have duplicates (of my data and also the installed packages) at different places.
To use WSL bash in VS Code integrated terminal, you need to add/change setting:
"terminal.integrated.shell.windows": "C:\\Windows\\System32\\bash.exe",
Restart VS Code or integrated terminal.
If two or more WSL distro are installed, then you need to specify the path to the desired distro.
For example you can find it by running: where ubuntu, where ubuntu1604 or where ubuntu1804. And change the settings to the desired ones. For example:
"terminal.integrated.shell.windows": "C:\\Users\\USERNAME\\AppData\\Local\\Microsoft\\WindowsApps\\ubuntu1604.exe",