I'm trying to set up VS Code for ObjectScript using the instructions found here. I've got both Cache 2018.1.2.309.0 and IRIS 2020. When I try to connect to either one of them the connection fails, and I get a notification in the bottom right corner that says "Unexpected token < in JSON at position 0". I've checked the JSON settings file that VS Code uses, and they're fine and formatted properly. All of the settings I've entered are correct.

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I have run into two annoyances when using VS Code for server-side editing of Objectscript and was wondering if anyone knows of any solutions or workarounds.


1. In .mac routine files, class names that aren't fully qualified (e.g. ##class(example) instead of ##class(Package.example)) fail to be understood, so the class will have a red squiggly underneath it and a problem that reads

"Class 'example' does not exist. InterSystems Language Server".

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I'm pleased to announce a major release of the InterSystems Server Manager extension. It has gained a UI!

Read more at Open Exchange.

Right now version 2.0 is like an aircraft at the start of the runway (remember those days before COVID-19?), waiting for the control tower to give final clearance. Will you be an early adopter, downloading the VSIX from GitHub, installing it into your VS Code, and posting back here to confirm that we haven't left anything critical behind at the gate? Then I'll push the throttles forward, publish to Marketplace, and we'll all be on our way.

Server Manager 2.0 is my entry for the current contest. If you like it maybe you'll vote for me it. wink

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How do I view the .int code of a compiled class in VS Code?

I am trying to use gj::Locate and the setup works, the explanation is all fine but when i paste an error from the Error Logs into the gj::locate it firstly tells me that it can't find the .cls and when I paste in the .int reference in the text box where you can specify the class, method, line+offset it replies that it can't find the item.

This is something to do with the objectscript extension rather than gj::locate


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Announcing gj :: locate.  A simple extension for VS Code that will help you get to the source of your errors.

In VS Code, using either the Serenji extension or the basic InterSystems objectscript extension, this small add-on will open the appropriate class or routine and position you at the exact line where an error occurred.

No more tedious counting of lines to find <UNDEFINED>zCredit+206^Ledger.Invoice.1.  Instead, with gj :: locate you can get there with just a couple of clicks.

This 20 second video tells it all:

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Laurel James · Apr 20, 2021 3m read
Why gj :: locate?

You may think it isn’t too difficult to get from label+offset^routine to the actual source line responsible for the error.  For an expert it isn't that hard... most of the time.  But there are enough oddities and special rules that even an expert can get it wrong, whilst spending a lot of time trying to get there.

gj :: locate is the latest tool from George James Software – it debugs any error, class or routine by converting the location of an error in compiled .int code to the corresponding location in your source, and then taking you right there.

Image this scenario…

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I checked out a Git-Branch and want to Import all Objectscript-Objects to my localhost.

While using Import without Compilation I receive a lot of errors.

request to failed, reason: connect ECONNREFUSED

While using Import and Compile I receive much more of this errors.

Is there a setting, that I have to key in?

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In Studio you could open a class directly via it's name, without having to traverse the package tree with multiple clicks until arriving at the desired class.

You would Ctrl + O or (File -> Open) and be able to simply type in the class name, for example:

You press Enter, and viola - the class is opened.

How do you achieve this in VSCode?

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Renan Santos · Mar 30, 2021
IRIS and VsCode Questions

Hi Community,


I'm developing an IRIS environment for a project and I would like to take some questions to pass on to the developers that I haven't found yet here in the community:


1. Is it possible to debug the process in VSCode in real time?

2. How can we use the terminal in VsCode for some configuration or just import applications (Example: Web Terminal)?


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Moving over from Studio To VSCode like many other will do now the ObjectScript plugin reached version 1.0, I noticed I was missing some items in the objectscript explorer. For example when creating a Rest API using the spec first approach, 3 classes are generated, an application.impl, application.disp and application.spec class, but the disp class was missing in the Object Explorer.

As the application.disp is a generated class, for showing these classes you need to turn this on by hitting the switch on the object explorer:

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Dmitry Maslennikov · Mar 3, 2021 4m read
Access to IRIS from Rust

What do you think If I will say you, that very soon you will be able to connect to IRIS from the application written in Rust.

What is Rust

Rust is a multi-paradigm programming language designed for performance and safety, especially safe concurrency. Rust is syntactically similar to C++, but can guarantee memory safety by using a borrow checker to validate references. Rust achieves memory safety without garbage collection, and reference counting is optional. (c) Wikipedia

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Roberto Cahanap · Feb 19, 2021
VS Code export MAC files

Currently in Visual Studio Code when we connect to a Cache server and export the CLS and MAC files, they get placed in the following:



Where the Packages folder corresponds to the different class packages we have. The MAC files are placed in the src folder and not contained in it's own folder.

Is there a way to configure the export for the MAC files so that it's contained in it's own folder like this:


Thanks in advance for your help.


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Hi -

I know this is very "newby" of me, but here goes..

I have moved some classes onto my server, but these have never been in VSCode as edited files, and I'm just not finding the magic command or button or drop-down that says "pull this file from the server and make me a local copy to edit. I can see the class files on the server using the ObjectScript plugin - but I just can't find out where to make a local copy for editing



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Hi Developers!

A question to those who use VSCode to code InterSystems ObjectScript.

Suppose you have the ObjectScript code on IRIS server and you want to export it into the desired folder.

And you have VSCode connected to the server.

What is the way to tell VSCode that I want to export classes into some particular folder in /package/class.cls way?

E.g. into:


and project_folder is opened in VSCode as the folder of the project.

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When wanting to use VS-Code for server-side editing.. - In VS-code I can right click on a server item (eg a class) to see a set of menu options including 'Server Source Control... ' and 'Server Command Menu...' at the bottom.

I noticed that these options are somewhat connected to my server-side source control hooks class that inherits from %Studio.SourceControl.Base, however, I am seeing different behavior between my custom subclass of this, and, the provided %Atelier.SourceControl subclass.

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On a default VS Code installation, when you create a new file its language mode is 'Plain Text'

You have to click there to set another mode.

Luckily, there's a setting you can tweak to change this. It is called files.defaultLanguage

Set it to the ID of the language you want. Those IDs display in parentheses after each entry on the language mode selector.

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Coming up this Wednesday (27th January 2021), two and a half hours of online sessions by members of the product team at Microsoft.

Join the Visual Studio Code team and community at a live event just for VS Code users. Get a glimpse of things to come and meet the team who works on VS Code every day.

It's free, starts at 8am PST, and sessions will be available for replay after the event.


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Hi all,
By using VS code, I want to copy multiple files to local directory, then sync them to server, but I can't find where local directory is stored?
In Atelier IDE, I could open a view of server and can copy the code to the project, then code is saved in the local directory. When I copy multiple files to the local directory -> choose sync in Atelier -> the code will be synchronized to the server
How to do this from VS Code?

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I am currently evaluating Source Control systems that we can use for both MS SQL, MS Visual Studio, and InterSystems IRIS. For both MS SQL and MS Visual Studio we do have the option of either Azure or GitHub.  I understand when we upgrade to IRIS 2019.1 we have options for Source Control, and in previous Global Summit's I have heard GitHub discussed.  So why can't I user GitHub for both MS SQL/MS Visual Studio and IRIS?

A couple of questions come to mind starting to think about Source Control

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