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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Retail POS: Could not ...
Microsoft Dynamics AX (Archived)

Retail POS: Could not load all external service modules - event log implicates "Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic"

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Posted on by Community Member

Hello, 

I run into the dreaded  "Error number: 1300 could not load all external service modules" and then it follows with "Error Number 2: A system error has occurred. the application will close."

I found that the TestConnector.dll was not in the Connectors folder so i copied it from the client directory.  Still no go.

When I check the event log, the issues revolve around "Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic"

This is what I get in one of the event log:

SystemCore: System.ComponentModel.Composition.ChangeRejectedException: The composition remains unchanged. The changes were rejected because of the following error(s): The composition produced a single composition error. The root cause is provided below. Review the CompositionException.Errors property for more detailed information. 1) No exports were found that match the constraint: ContractName Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic RequiredTypeIdentity Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic Resulting in: Cannot set import 'Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication.BusinessLogic (ContractName="Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic")' on part 'Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication'. Element: Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication.BusinessLogic (ContractName="Microsoft.Dynamics.Retail.Pos.Contracts.BusinessLogic.IBusinessLogic") --> Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication at System.ComponentModel.Composition.CompositionResult.ThrowOnErrors(AtomicComposition atomicComposition) at System.ComponentModel.Composition.Hosting.ComposablePartExportProvider.Compose(CompositionBatch batch) at System.ComponentModel.Composition.Hosting.CompositionContainer.Compose(CompositionBatch batch) at System.ComponentModel.Composition.AttributedModelServices.ComposeParts(CompositionContainer container, Object[] attributedParts) at Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication.Initialize().

Any suggestions are greatly appreciated. 

thanks!

 

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I have the same question (0)
  • cekrice Profile Picture
    cekrice 25 on at

    Hi Mike,

    Did you solve the issue?

  • Suggested answer
    Iulian Cordobin Profile Picture
    Iulian Cordobin 8,201 on at

    Do you have the issues above? Sounds like a missing file in the Retail POS folder. The Microsoft.Dynamics.Retail.Pos.Contracts.dll file  

    can be found at the c:\Users\<a_user_with_SDK>\Documents\Retail SDK\POS Plug-ins\ path.

  • cekrice Profile Picture
    cekrice 25 on at

    Hi Iulian,

    It is standing there...

  • Iulian Cordobin Profile Picture
    Iulian Cordobin 8,201 on at

    So, have you copied the file to 'c:\Program Files (x86)\Microsoft Dynamics AX\60\Retail POS\'?

  • cekrice Profile Picture
    cekrice 25 on at

    Yes...

  • Iulian Cordobin Profile Picture
    Iulian Cordobin 8,201 on at

    I just recalled (working years ago with this one) that maybe you're missing your dll files? Have you extended in some way the UI or BL for the POS? Because if you did that you need to make sure also your dlls are properly placed in the Extensions folder in the same path.

  • Suggested answer
    cekrice Profile Picture
    cekrice 25 on at

    Actually I tried to integration with thirdparty app. in the first place. Then the error is thrown.  After that, i returned back to 2 weeks before from TFS for the solution. But still have the error...

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