Software⏱️ 3 min read📅 2026-06-04

How to Fix: Error deploying ClickOnce application - Reference in the manifest does not match the identity of the downloaded assembly

ClickOnce application deployment error fix.

Quick Answer: Check the identity of the downloaded assembly in the manifest and ensure it matches the reference in the deployment URL.

The 'Reference in the manifest does not match the identity of the downloaded assembly' error occurs when there is a mismatch between the identity specified in the ClickOnce application's manifest and the actual identity of the downloaded assembly. This issue affects users who are attempting to deploy or update their ClickOnce applications.

This error can be frustrating for users as it prevents them from successfully deploying or updating their ClickOnce applications, resulting in failed installations or updates.

🛑 Root Causes of the Error

  • The primary reason for this error is that the identity specified in the manifest does not match the actual identity of the downloaded assembly. This can occur due to various reasons such as incorrect file names, missing or incorrect digital signatures, or incorrect version numbers.
  • Another alternative cause could be a mismatch between the culture and language information specified in the manifest and the actual culture and language information present in the downloaded assembly.

🛠️ Step-by-Step Verified Fixes

Resolving the Identity Mismatch

  1. Step 1: Step 1: Verify that the identity specified in the ClickOnce application's manifest matches the actual identity of the downloaded assembly. Check for any typos or incorrect information.
  2. Step 2: Step 2: If the identities match, check for any missing or incorrect digital signatures on the downloaded assembly. Ensure that the correct digital signature is present and valid.
  3. Step 3: Step 3: If the issue persists after verifying and correcting the identities and digital signatures, try updating the ClickOnce application to the latest version.

Using Deployment Manager

  1. Step 1: Step 1: Open the Deployment Manager and select the failed deployment.
  2. Step 2: Step 2: In the Deployment Manager, click on 'Edit' and then select 'Properties'. This will allow you to view and edit the ClickOnce application's manifest.

🎯 Final Words

To resolve the 'Reference in the manifest does not match the identity of the downloaded assembly' error, verify that the identities specified in the ClickOnce application's manifest match the actual identities of the downloaded assemblies. If issues persist, consider using Deployment Manager to update and correct the deployment.

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