I updated to 2026.2.0, my servers are at 2026.1.7.
I cannot edit endpoint code anymore.
Error: "Endpoint does not have a configuration file path"
Can't edit scripts:
Error: "cannot open psu-legacy://xxx/AD_accounts_notification.ps1?6c0f7c60-0ee5-45f4-b97c-55ef191bf413. Detail: Unable to read file 'psu-legacy://xxx/AD_accounts_notification.ps1?6c0f7c60-0ee5-45f4-b97c-55ef191bf413' (Error: Unable to resolve nonexistent file 'psu-legacy://xxx/AD_accounts_notification.ps1?6c0f7c60-0ee5-45f4-b97c-55ef191bf413')
I worked nicely with the 5.2 extension.
@deroppi Currently, the extension only supports 2026.2 and later servers. I'll see if we can improve the behavior for older servers or at least handle the connection better. We had hoped to publish this as an entirely new extension but are stuck waiting on the VS Code Marketplace team to address an issue we're having with publishing.
Adam Driscoll
PowerShell Expert and Developer at Devolutions
Thank you.
I just updated our DEV server 2026.2.0
The errors are the same.
@deroppi In your endpoints.ps1, how do you have your endpoints defined? Is it -Module\-Command or -Endpoint?
Can you try clicking the connect button before editing scripts? 
Adam Driscoll
PowerShell Expert and Developer at Devolutions
45b4a891-86b7-4770-aac1-f7ea351e4742.png
I did connect (plug is shown upright), no change.
I don't understand your question about the endpoints.
In the admin console I simply clicked add endpoint, added a role and auth, selected GET or POST method and wrote some script code.
The endpoint works. I can connect via PS or curl, with a token, and get my results back.
@Adam Driscoll I was mostly wondering what the endpoints.ps1 format looks like. I noticed that I got the same error in the extension if I used the -Command\-Module format for New-PSUEndpoint.
Adam Driscoll
PowerShell Expert and Developer at Devolutions
New-PSUEndpoint -Url "/APIgeneric" -Method @('GET') -Authentication -Role @('Local Api') -Path "APIgeneric.ps1"
I did a test on my DEV server with just this.
Same error.
@deroppi Thanks. I'll open an issue for this so we can get it resolved.
Adam Driscoll
PowerShell Expert and Developer at Devolutions