unable to open workflow.json in designer mode

[sudeepBayer]

Severity

P1 - Critical (Blocking production)

Describe the Bug with repro steps

Does this occur consistently?
Repro steps:

Action: azureLogicAppsStandard.openDesigner
Error type: Error
Error message: Error in determining project root. Please confirm project structure is correct.
Correlation Id: 46366C7B-156F-4963-8CCA-CF27E5A99533
Session id: 4d920091-cc02-4504-98ae-dc5679ada9711775231269747
Extension version: 5.230.15
Extension bundle version: 1.138.54
OS: win32 (Windows_NT 10.0.26200)
OS arch: x64
Product: Visual Studio Code
Product version: 1.114.0
UTC time: Fri, 03 Apr 2026 16:00:00 GMT

Settings

{
  "dataMapperVersion": 2,
  "validateFuncCoreTools": true,
  "autoRuntimeDependenciesPath": "C:\\Users\\sudepal\\.azurelogicapps\\dependencies",
  "autoRuntimeDependenciesValidationAndInstallation": true,
  "parameterizeConnectionsInProjectLoad": true
}

Call Stack

getLogicAppProjectRoot main.js:454300:11
async _OpenDesignerForLocalProject.createPanel main.js:470001:24
async openDesigner main.js:470449:3

What type of Logic App Is this happening in?

Consumption (Portal)

Are you experiencing a regression?

No response

Which operating system are you using?

Windows

Did you refer to the TSG before filing this issue? https://aka.ms/lauxtsg

Yes

Workflow JSON

Screenshots or Videos

No response

Environment

vs code

Additional context

No response

[github-actions]

AI Triage Analysis

Component: VS Code Extension | Priority: P2 (High) | SKU: Standard (VS Code / Local Development)

⚠️ Note: The issue template says "Consumption (Portal)" but the error and call stack clearly indicate this is a VS Code Standard Logic App issue (extension command azureLogicAppsStandard.openDesigner).

Relevant Code

• apps/vs-code-designer/src/app/utils/codeless/connection.ts:102-113 — getLogicAppProjectRoot() throws the exact error when tryGetLogicAppProjectRoot returns undefined
• apps/vs-code-designer/src/app/utils/verifyIsProject.ts:175-210 — tryGetLogicAppProjectRoot() checks workspace root, then only one level of subdirectories for a valid Logic App project
• apps/vs-code-designer/src/app/utils/verifyIsProject.ts:19-40 — isLogicAppProject() validates a folder by looking for host.json and at least one workflow subfolder

Probable Root Cause

tryGetLogicAppProjectRoot only searches the workspace root and one subdirectory level deep for a Logic App project (identified by host.json + workflow folders). If the Logic App is nested more than one level below the VS Code workspace root, or if host.json is missing/malformed, the function returns undefined and the error is thrown. This is a known limitation when working with monorepos or non-standard folder structures.

Suggested Investigation

1. Verify the workspace folder structure — confirm host.json exists at the Logic App root, and that the Logic App is at most one folder deep from the VS Code workspace root
2. Check if the VS Code workspace setting azureLogicAppsStandard.projectSubPath is configured to point to the correct subfolder (see projectSubpathKey in verifyIsProject.ts)
3. Try opening VS Code directly from the Logic App project folder (not a parent repo folder) as a workaround

Similar Issues

• Search found prior reports of the same error — likely related to project structure not matching expected layout

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Automated analysis by issue triage agent. May contain inaccuracies — verify before acting.
Calibration: reviewed past triages, no corrections applied (unable to parse historical data in this run).

Generated by Issue Triage Agent for Azure Logic Apps UX for issue #9009 · ◷