Скачать или смотреть Resolving Azure Deployment Issues: How to Fix the Microsoft.Azure.DocumentDB.Core Assembly Error

Are you facing an `Unhandled Exception` with Azure deployment? Learn how to resolve the `Microsoft.Azure.DocumentDB.Core` assembly loading issue efficiently!
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This video is based on the question https://stackoverflow.com/q/63787006/ asked by the user 'Rob Wavre' ( https://stackoverflow.com/u/14238757/ ) and on the answer https://stackoverflow.com/a/64584871/ provided by the user 'Rob Wavre' ( https://stackoverflow.com/u/14238757/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving Azure Deployment Issues: How to Fix the Microsoft.Azure.DocumentDB.Core Assembly Error

When deploying applications on Azure, developers often encounter a variety of challenges that can lead to frustrating downtimes and performance issues. One common problem that many face is an Unhandled Exception involving the assembly Microsoft.Azure.DocumentDB.Core. This error usually manifests itself after a library or SDK upgrade, leading to difficulties when deploying your application to Azure Cloud Services.

In this guide, we'll discuss this typical error, explore potential causes, and provide a detailed solution to ensure your Azure deployment runs smoothly.

The Problem: Unhandled Exception During Deployment

After upgrading to a newer version of the Microsoft.Azure.DocumentDB.Core SDK, you may start experiencing the following error when deploying your application:

[[See Video to Reveal this Text or Code Snippet]]

This can cause the web role to enter a constant recycling state, making it impossible for your application to function.

Possible Causes

Version Mismatch: The error suggests that the deployed version of the assembly might not be matching the expected version.

Missing Binding Redirects: The binding redirects you have set may not be functioning as intended during the deployment.

Configuration Files: Specific configuration files may not have been included in the deployment package.

Solution: Steps to Resolve the Issue

Here’s a step-by-step approach to resolve the assembly loading error and ensure your Azure deployment is successful.

Step 1: Verify DLL Version

Log on to the Web Role: Connect to your Azure web role and verify that the Microsoft.Azure.DocumentDB.Core.dll version is as expected (e.g., 2.11.6.0, according to your references).

Step 2: Check Binding Redirects

Configure Binding Redirects: Make sure all relevant projects contain proper binding redirects in their configurations. For instance, your dll.config might look like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Include Necessary Configuration Files

Local Configuration File: There is a file WebRoleName.dll.config created locally alongside the web.config file during development. This config is not automatically deployed with your project. The solution is to manually include this file in your Web Role’s project structure.

Add the WebRoleName.dll.config to the root of your Web Role project.

Set its properties to Content and Copy Always.

This strategy ensures that the necessary redirects are available when the web role starts up.

Step 4: Clean and Rebuild Your Package

Package Clean-Up: Delete the packages folder and regenerate it. This step ensures that any outdated references or assemblies are removed.

Step 5: Adjust Deployment Settings

Change OS Family: If still encountering issues, try changing the Azure role osFamily to a more updated version (e.g., from 5 to 6).

Step 6: Auto-Generate Redirects

Visual Studio Auto-Generation: In case the above steps didn’t work, try removing all binding redirect statements and allow Visual Studio to regenerate them when you publish.

Conclusion

After performing the above steps—especially including the WebRoleName.dll.config file in your deployment package—you should find that your Azure deployment works without the previously encountered assembly loading issues.

While encountering deployment errors can be frustrating, with the right approaches and solutions, you can ensure a seamless and efficient deployment process for your Azure applications.

If you have any further questions or specific issues, feel free to reach out!