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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Could not load report ...
Microsoft Dynamics AX (Archived)

Could not load report business logic assembly

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Posted on by Community Member

Failed to load expression host assembly. Details: Could not load file or assembly 'VendorSRS.BusinessLogic' in AX 2012.... While running reports in AX we are getting this error. Please advise urgently if anyone knows

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  • Suggested answer
    Community Member Profile Picture
    Community Member on at

    Goto AOT -> Visual Studio Projects -> C Sharp Projects and verify that

    "VendorSRS.BusinessLogic" exist.

    Also if it exist and you are still having the issue trying redeploying that project followed by SSRS service restart.

  • Suggested answer
    Lance [MSFT] Profile Picture
    Lance [MSFT] on at

    This means that ssrs cannot find a file containing code for a report.  

    These business logic assemblies are normally copied to the ssrs server when a report is deployed.  It should be located at a path similar to C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer\bin.  The directory MSRS10_50.MSSQLSERVER might be named something else depending on your sql version and the instance name of your ssrs server.  Check if that file is in the ReportServer\bin folder.

    If it is, then the problem might be that the Ax Reporting Extensions component installed on the ssrs server.   That installation customizes the ssrs configuration settings so that it can find these business logic assemblies.  If that install step was overlooked that could cause this problem.

    If the file is not in the ReportServer\bin folder then you can deploy it by running the Publish-AxAssembly command from the AxManagement Shell.  See this article for details on the publish assembly command: technet.microsoft.com/.../jj720258.aspx

    Hope this helps,

    Lance

  • Community Member Profile Picture
    Community Member on at

    Thanks for the details.

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