@Lukas Dolezal 
VS Code's View Other command supports jumping to the same line in the INT routine, but that support requires an InterSystems server with Atelier API version 4 or above (Cache 2018.1.6+, IRIS 2019.1.2+, 2020.1.1+, 2021.1+). If you're not using one of those versions then the location mapping won't work.

An important detail about the independent Studio is that it is installed in its own directory, so it won't be uninstalled when you upgrade/add/remove IRIS instances on your system. Also, since the 2024.1 Studio is forward-compatible, you won't need to update it every time a new IRIS version is released.

There is an open feature request for automatic indentation support, but that doesn't include adding newlines: https://github.com/intersystems/language-server/issues/293

You can use your second example above, then copy the content into a new %Stream.GlobalBinary:

Do strm.Rewind()
Set o = {}, o.strm = strm, strm2 = o.%Get("strm",,"stream>base64")
Set strm3 = ##class(%Stream.GlobalBinary).%New()
Do strm3.CopyFrom(strm2)

Since this issue can't be reproduced by you on another server, or by me with a fresh install of your adhoc, I think it's highly unlikely that there's a product defect. I think this is an issue with that specific instance only. The WRC should be able to help you investigate this further.

I tried to reproduce your issue with your exact server version and I couldn't get the error to occur. Do you remember when this started happening? Does debugging work when you connect to other instances?

Yes, that is very helpful. The <COMMAND> error is coming from a line that calls "Do <debug_target>", which in this case is "##class(prosthetic.ProstheticResourceTest).RunTests()". Does running "Set a = "##class(prosthetic.ProstheticResourceTest).RunTests()" Do @a" work from the terminal in that namespace or do you see the same <COMMAND>?

Thanks for the information @Daniel Raderstrong. Can you please run the troubleshooting steps found in the docs and post the contents of the trace global here? That will help me identify the cause of your issue.

@Daniel Raderstrong 
How are you running the debugger? What version of the vscode-objectscript extension do you have and what's the $ZV of your server?

@Evan Gabhart 
No, you can't import .rtn files and we have no plans to add that. Other than the SMP, you can use the VS Code integrated terminal to open an IRS terminal, or the WebSocket Terminal to import the .rtn files. I would recommend using a different format for your exports though, like XML or UDL.

Thanks for the screenshots. I've never seen that happen before. I just booted up my windows machine and tried to reproduce that behavior but couldn't. If you delete the src/index.csp file and then save src/goerke/index.csp, does src/index.csp re-appear? Do you see any errors or messages in the ObjectScript Output channel?

I'm not sure what you mean by "it recreates the file in the root directory of the namespace". Can you post a screenshot? Also, can you describe in more detail what you're trying to test? We will be able to give better advice with more context.

@Daniel Goerke 
What learning course/training steps are you following? Do you mean to be creating CSP files? CSP files need to be stored inside a web application so they can be served by the web server. They can't be created as standalone files without that context. Therefore, you need to have the CSP file in folders that tell VS Code what web application it goes it. For example, if you want to create mypage.csp in web application /csp/user, the path to the file inside your local workspace should be something like src/csp/user/mypage.csp. You may also find it easier to edit web application files directly on your IRIS server using server-side editing.

@Evgeny Shvarov This should work:

Do ##class(%Studio.General).GetWebServerPort(,,,.url) Write url,"csp/sys/UtilHome.csp" Kill url