SSRS_Assembly_Load_Error

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Snippet Name: SSRS_Assembly_Load_Error

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Created Date: 2025-06-16 13:12:50
Last Modified Date: 2025-05-31 10:31:50

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Title: SSRS Assembly Load Error
Author: user
i am getting an error in SSRS SQL2019 logs: Could not load file or assembly 'Microsoft.ReportingServices.Cloud.DataExtensions' or one of its dependencies.

Author: ChatGPT
The error message "Could not load file or assembly 'Microsoft.ReportingServices.Cloud.DataExtensions' or one of its dependencies" in SQL Server Reporting Services (SSRS) 2019 typically suggests that the SSRS instance is attempting to load a cloud-related assembly that might not be necessary or applicable to your environment, especially if you're running it on-premises.

Here are some steps to troubleshoot and resolve the issue:

### 1. **Check the SSRS Configuration Files:**
   - Locate the SSRS configuration files (such as `RSReportServer.config`, `rssrvpolicy.config`, etc.), and ensure that there's no reference to `Microsoft.ReportingServices.Cloud.DataExtensions` if you're not using cloud features.
   - You can typically find these files at:
     - **On-premises SSRS installation:** `C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer`
     - **SSRS Native Mode:** The configuration file is in the `ReportServer` folder.
   - If you find any references to the `Microsoft.ReportingServices.Cloud.DataExtensions` assembly, you may consider commenting them out or removing them (if safe to do so).

### 2. **Update SSRS to the Latest Cumulative Update (CU):**
   - Ensure that SSRS 2019 is fully updated with the latest cumulative updates, as Microsoft frequently releases fixes for various issues.
   - You can find the latest CUs on the official Microsoft SQL Server download page.

### 3. **Check for Incorrect or Missing DLLs:**
   - The error could also be due to missing or mismatched DLLs. Verify that the required assemblies, such as `Microsoft.ReportingServices.Cloud.DataExtensions.dll`, are present in the SSRS installation directory.
   - If missing, you may need to reinstall or repair the SSRS instance.

### 4. **Ensure Proper SSRS Edition:**
   - Make sure you're using the correct edition of SSRS (e.g., not inadvertently mixing cloud-specific components from Power BI Report Server with an on-premises SSRS installation).

### 5. **Check Report Server and Service Logs:**
   - The logs can provide more information. Check both the SSRS logs and Windows Event Viewer for more details on the error. You can find SSRS logs here:
     - **ReportServerService logs:** `C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\LogFiles`

Let me know if you'd like further assistance analyzing the logs or other specific details!

Author: user
how can i download and install Microsoft.ReportingServices.Cloud.DataExtensions

Author: ChatGPT
The `Microsoft.ReportingServices.Cloud.DataExtensions` assembly is not typically needed for on-premises SQL Server Reporting Services (SSRS) installations. It is a component used in cloud-related SSRS implementations, such as Power BI Report Server or Azure-based Reporting Services. This assembly is not commonly included in the default on-prem SSRS setup.

### Steps to Download and Install:
There is no direct, standalone download for `Microsoft.ReportingServices.Cloud.DataExtensions`. However, if you still need to work with it (e.g., you're working in a hybrid or cloud-focused environment), here are possible approaches:

### 1. **Check SSRS Installation Version:**
   - Ensure your SSRS installation matches the version you're working with (SQL Server Reporting Services 2019). If this assembly is missing, reinstalling or repairing your SSRS installation should restore any missing components.
     - **Repair Installation**:
       - Go to **Control Panel > Programs > Programs and Features**.
       - Find **SQL Server Reporting Services**.
       - Right-click it and choose **Repair**.

### 2. **Install Power BI Report Server (If Applicable):**
   - If you're using Power BI Report Server or integrating cloud reporting services into SSRS, you can download **Power BI Report Server** which may contain this assembly.
     - Download from [Power BI Report Server Downloads](https://powerbi.microsoft.com/en-us/report-server/).
     - Install or configure it in your existing environment if needed.

### 3. **Use a Custom Assembly (If Absolutely Necessary):**
   - If for some reason the `Microsoft.ReportingServices.Cloud.DataExtensions` assembly is critical to your environment (for example, you're integrating with Power BI or Azure), you can try locating the assembly in other installations, such as from an Azure-based SSRS environment or Power BI Report Server.
     - **Copy the DLL:**
       - If you have access to an environment where the cloud extension is installed, locate the `Microsoft.ReportingServices.Cloud.DataExtensions.dll` file and copy it to your current SSRS environment under:
         ```
         C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin
         ```
       - Register the assembly by adding a reference to it in your `RSReportServer.config` file under the `<DataExtensions>` section.

### 4. **Avoid Using the Cloud Extension in On-Prem SSRS:**
   - Since this is a cloud-focused extension, it may not be necessary for your on-prem SSRS configuration. If you're not using any cloud-based functionality, it's usually safe to remove references to it in your configuration files.
   - In your **RSReportServer.config**, locate the `<DataExtensions>` section and remove any reference to `Microsoft.ReportingServices.Cloud.DataExtensions`.

If you're still encountering issues or feel like you need this assembly but don't have the proper setup, I recommend considering whether this specific component is necessary for your environment. If you're purely working with on-prem SSRS, removing it from your configuration may solve the problem.

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