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Marketplace AL Language extension cannot publish to BC 29 sandbox: server requires Debugger 9.0, latest release/pre-release support only up to 8.0

Aperta
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Valutazione

Difficoltà
5/5
Tempo stimato
Più di una settimana
Idoneità per principianti
8/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
vscode
Ambito
developer-experience

Direzione di ricerca

The failure is the version-compatibility check that rejects the Marketplace AL extension when the server reports Debugger 9.0; the supported-debugger list is what needs to change, and the attached publish-error-output.txt and launch.json show the failing requests. Resolving it means a maintainer publishing a release that supports debugger 9.0, not a code edit a newcomer can finish alone. Done means the Marketplace build connects to a BC 29 sandbox with Download Symbols, Publish and Debug all succeeding.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

Summary
After our BC SaaS sandbox was updated to BC 29, the AL Language extension from
the VS Code Marketplace can no longer connect to it. Download Symbols, Publish
(Ctrl+F5) and Debug (F5) all fail immediately with:

Error: This AL extension version for Visual Studio Code cannot be used with
the specified server. Please update the AL extension from the Visual Studio
Code marketplace.

There is no newer version on the Marketplace to update to.

Environment

  • Business Central: IN Business Central 29.0 (Platform 29.0.55857.0 + Application 29.0.54011.55935)
  • Environment type: SaaS Sandbox
  • Server reports: Runtime 18.0, Web API 7.0, Debugger 9.0
  • VS Code 1.141.0, Windows 11 (10.0.26200)
  • app.json: "application": "29.0.0.0", "runtime": "18.0"

Results per AL extension version

AL version Source Supported debuggers Result
18.0.2819426 Marketplace, latest release (2026-10-01) up to 8.0 Blocked: "cannot be used with the server"
30.0.2813176 Marketplace, latest pre-release (2026-10-01) up to 8.0 Blocked: "cannot be used with the server"
18.1.2825563 BC artifact sandbox/29.0.54011.55935/platform (same build as our sandbox) up to 7.0 Blocked: "cannot be used with the server"
18.1.2842859 BC artifact sandbox/29.0.54011.56119/platform up to 9.0 Publish works (debugging fails, reported separately)

Steps to reproduce

  1. Install the latest AL Language extension from the Marketplace
    (18.0.2819426, or pre-release 30.0.2813176).
  2. Open a project targeting application 29.0.0.0 / runtime 18.0.
  3. Run AL: Download Symbols, Ctrl+F5 or F5 against the BC 29 sandbox.
  4. The request to /v2.0//dev/metadata?tenant= returns
    the version-incompatibility error. Supported runtimes and Web API match the
    server, but debugger 9.0 is missing from "Supported debuggers".

Observations

  • Runtime (18.0) and Web API (7.0) are supported by all versions tested; only
    the debugger version (9.0) blocks the connection.
  • The AL VSIX shipped in the sandbox's own artifact (29.0.54011.55935) supports
    only debuggers up to 7.0, so the server's debugger endpoint appears to have
    been updated ahead of the AL tooling released with that build.
  • The only working build we found, 18.1.2842859, is not available on the
    Marketplace. We had to extract it manually from the BC artifact CDN.

Workaround in use
Manually installed ALLanguage.vsix 18.1.2842859 extracted from
https://bcartifacts-exdbf9fwegejdqak.b02.azurefd.net/sandbox/29.0.54011.56119/platform
(path inside: ModernDev/PFiles/Microsoft Dynamics NAV/290/AL Development Environment/ALLanguage.vsix).
Auto-update for the AL extension has to be disabled, otherwise VS Code
replaces it with the incompatible Marketplace build.

Expected
A Marketplace release (or pre-release) of the AL Language extension that
supports debugger protocol 9.0 should be available when sandboxes are
updated to it.

Request
Please publish an AL Language extension version supporting debugger 9.0 to
the Marketplace, or confirm the recommended version for BC 29 Platform 29.0.55857.0.

Image

launch.json
publish-error-output.txt

Lingua principale
PowerShell
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