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Workbench returns a 404 error when creating an LCA file on an AEM Forms JEE cluster

Last update: October 8, 2026

This article explains how to resolve a 404 error encountered when creating an LCA (LiveCycle Archive) file in AEM Forms Workbench on an eForms cluster, caused by a protocol mismatch in configuration.

Description description

Environment

AEM Forms Workbench connected to a clustered AEM Forms on JEE environment

Issue/Symptoms

  • Creating an LCA (LiveCycle Archive) file in AEM Forms Workbench on the cluster returns HTTP 404.
  • The error occurs during LCA creation.
  • The stack trace references FormsManagerCqClient and RestInvoker.
  • The JVM integration URL uses https://.
  • The ContentRepositoryConnector Protocol field shows Http while the integration URL uses https://.

Cause

During LCA creation, Workbench’s repository-configuration request to AEM Forms returns HTTP 404. The stack trace identifies the call through FormsManagerCqClient and RestInvoker. The difference between the integration URL scheme and the ContentRepositoryConnector Protocol value does not, by itself, establish that changing the Protocol to HTTPS is the correct fix.

Resolution resolution

Follow the steps below to address the issue:

  1. Review the JVM property -Dcom.adobe.livecycle.crx.integration.url and the ContentRepositoryConnector Protocol setting. Confirm that the integration URL points to the intended AEM Forms server and includes the expected /lc context. Don’t change the Protocol value to HTTPS based only on the URL scheme. If the supported value isn’t clear, ask your AEM Forms administrator or Adobe Support to verify it.
  2. If an authorized administrator changes a supported server-side configuration, restart the AEM Forms server according to the cluster’s operational procedure.
  3. In AEM Forms Workbench, select Fetch Workflows to synchronize with the AEM Forms server at /lc. Confirm that synchronization completes successfully.
  4. Attempt to create the LCA file again. Confirm that Workbench creates the archive without returning HTTP 404.
  5. If the error continues, contact Adobe Support. Provide the error message, the affected AEM Forms version and deployment type, and sanitized logs. Remove credentials, customer hostnames, and customer-specific identifiers before adding any examples to public documentation.
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