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Resolving rsUnhandledHttpApplicationError Issues in Power BI and SSRS

2024/07/25
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Key Notes

  • Ensure essential assemblies are present on the server.
  • Correctly configure the rsreportserver.config.
  • Enable remote errors for better diagnostics.

Troubleshooting the rsUnhandledHttpApplicationError in SSRS

The rsUnhandledHttpApplicationError can halt your reporting processes in SQL Server Reporting Services (SSRS), leading to frustration and delays. Understanding its causes and implementing effective solutions is crucial for maintaining report generation and business intelligence flow. This guide explores practical troubleshooting steps to help you resolve the rsUnhandledHttpApplicationError efficiently.

Practical Solutions for Fixing rsUnhandledHttpApplicationError

Step 1: Verify Required Assemblies are Present

Start by checking that all necessary assemblies are installed on your SSRS server. Follow these steps:

  1. Access the server hosting SQL Server Reporting Services (SSRS).
  2. Open File Explorer and navigate to:

    3. C:\Program Files\Microsoft SQL Server\MSRSxx. MSSQLSERVER\Reporting Services\ReportServer

  3. In the bin directory, ensure the following files are present:
    • Microsoft. ReportingServices. Authorization.dll
    • System. Web. Extensions.dll
  4. If any assemblies are missing, recover them from a valid SSRS installation or a reputable source.
  5. Restart the SSRS service by navigating to Services, locating SQL Server Reporting Services, and clicking Restart.

Pro Tip: Confirm that your copy of SSRS matches your applications’ dependencies to avoid future errors.

Step 2: Modify rsreportserver.config

Next, check the ssreportserver configuration settings for accuracy:

  1. Open File Explorer and head to the SSRS configuration folder:

    2. C:\Program Files\Microsoft SQL Server\MSRSxx. MSSQLSERVER\Reporting Services\ReportServer

  2. Find the rsreportserver.config file and edit it using a text editor, such as Notepad or Notepad++.
  3. Inspect the following configuration settings: <MachineKey ValidationKey="73456BAB6C0B195891670108D437481F13FE3D96DE061FB15CAEC42CFD6191E396F8C69938F62BF26BC0F9A15193D41F3E6B3CBB64F4487800F790C42BD93889" DecryptionKey="A82C0E01BFDFF33DDB3C9919521C43D6FBBE90FD64832F1C" Validation="AES" Decryption="AES"/>
  4. Save changes and close the editor.
  5. Restart SQL Server Reporting Services through the Services interface.

Pro Tip: Always back up the config files before making changes to roll back if needed.

Step 3: Activate Remote Errors in SSRS

Enabling remote errors can provide critical insights into errors encountered during report processing:

  1. Launch SQL Server Management Studio (SSMS) and connect to your Reporting Services instance.
  2. In the Object Explorer, right-click on your SSRS server and select Properties.
  3. Navigate to the Advanced tab.
  4. Locate the EnableRemoteErrors property and set it to True.
  5. Save the updates by clicking OK.
  6. Restart the SSRS service through the Services interface.

Pro Tip: Always review error logs after enabling remote errors to monitor any issues closely.

Step 4: Adjust SSRS Timeout Settings

Long-running reports may need extended timeouts to complete without errors:

  1. Open SQL Server Management Studio (SSMS) and connect to your Reporting Services instance.
  2. In the Object Explorer, right-click on the Reporting Services server and select Properties.
  3. Go to the Advanced tab.
  4. Modify the SystemReportTimeout setting to a higher value, such as 14400 seconds.
  5. Restart the SQL Server Reporting Services service through the Services interface.

Pro Tip: Monitor report execution times and adjust these settings dynamically based on usage patterns.

Summary

Successfully tackling the rsUnhandledHttpApplicationError involves checking for missing assemblies, updating configuration files, enabling remote error reporting, and adjusting timeout settings. By following these tailored steps, you can ensure your SSRS environment operates smoothly and is ready to handle reports effectively.

Conclusion

Resolving the rsUnhandledHttpApplicationError is critical for maintaining your reporting processes in SSRS. Staying proactive in validating configurations and ensuring crucial components are in place will greatly reduce the likelihood of encountering this error in the future. Don’t hesitate to implement these solutions the next time you face issues with your reports.

FAQ (Frequently Asked Questions)

What causes the rsUnhandledHttpApplicationError?

The rsUnhandledHttpApplicationError typically occurs due to missing assemblies, incorrect configuration settings, or timeout issues during report processing.

How can I improve the stability of my SSRS reports?

You can improve stability by regularly checking for updates in assemblies, optimizing configuration files, and monitoring performance metrics for reports.

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