Getting the error: Could not load file or assembly 'ThomsonReuters.Udap.BusTools.dll' is not a valid

sujit
sujit
in Eikon Data APIs
Getting the error: Could not load file or assembly 'ThomsonReuters.Udap.BusTools.dll' is not a valid Win32 application.
Tagged:

Best Answer

  • sujit
    sujit
    Answer ✓

    Replacing EikonPipeDII.dll and I18nResource.dll from Eikon install folder with ones from x64 package worked great. Now I can connect and download the data in Matlab.

    @Alex Putkov. Thanks for being so patient and helpful. Cheers!!!

Answers

  • Zhenya Kovalyov
    Zhenya Kovalyov

    Could you please provide more information about this. What is the context? Where are you getting this error?

  • sujit
    sujit

    I am trying to connect Matlab to Eikon. Followed the instructions mentioned in https://developers.thomsonreuters.com/article/using-eikon-net-sdk-matlab and downloaded the .m files zipped in EikonNETMatlabExample.

    When I run treikonnect, I get the above error

  • Alex Putkov.1
    Alex Putkov.1

    Which version of Matlab are you using? Please make sure the bitness of Eikon .NET SDK you downloaded from NuGet corresponds to the bitness of of your Matlab environment as per the Installation section of the article providing the example. Also make sure to copy all the files listed in the Installation section of the article to the folder referenced in treikonnet.m module.

  • sujit
    sujit

    @Alex Putkov. I am using Matlab 2018a 64 bit. Downloaded thomsonreuters.desktop.sdk.dataaccess.signed.x64.1.8.4 from Nuget and installed by running Install-Package ThomsonReuters.Desktop.SDK.DataAccess.Signed.x64

    at nuget PM Console . Have all the dll files listed in the article together with msvcp120.dll and msvcr120.dll in the common folder. Still getting the error. Not sure what is going wrong

  • Alex Putkov.1
    Alex Putkov.1

    One more thing. Make sure you use the versions of Common.Logging, Newtonsoft.Json and protobuf-net packages that got downloaded with ThomsonReuters.Desktop.SDK.DataAccess.Signed.x64.1.8.4 and not the latest versions of these packages. I.e. you should have
    Common.Logging.dll v2.1.2
    Newtonsoft.Json.dll v6.0.8.18111
    protobuf-net.dll v2.0.0.66

  • sujit
    sujit

    @Alex Putkov. did as you suggested. But no luck. I am using the files available in lib\net40 folder as available in the package

  • sujit
    sujit

    However, the error has now changed. Now its throwing up the following error: Message: Could not load file or assembly

    'file:///C:\Temp\EikonNetSDK\ThomsonReuters.Desktop.SDK.DataAccess.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format. Source: mscorlib

  • Alex Putkov.1
    Alex Putkov.1

    This error message very strongly suggests a mismatch in the bitness of ThomsonReuters.Desktop.SDK.DataAccess.dll and Matlab. Did you copy ThomsonReuters.Desktop.SDK.DataAccess.dll from ThomsonReuters.Desktop.SDK.DataAccess.Signed.x64 package?

  • sujit
    sujit

    Replaced ThomsonReuters.Desktop.SDK.DataAccess.dll from .x64 package. Error has changed again. Now I am getting:

    Message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. Source: mscorlib

  • Alex Putkov.1
    Alex Putkov.1
    • Delete all files from your EikonNetSDK folder.
    • Copy EikonPipeDll.dll and i18nresource.dll from Eikon install folder to your EikonNetSDK folder.
    • Copy the rest of the files listed in the article from ThomsonReuters.Desktop.SDK.DataAccess.Signed.x64 package to your EikonNetSDK folder.
    • Try running Matlab code in the example.
  • sujit
    sujit

    did that..now back to the old error:

    Message: Could not load file or assembly 'ThomsonReuters.Udap.BusTools.dll' or one of its dependencies. is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) Source: mscorlib

  • Alex Putkov.1
    Alex Putkov.1

    A quick Web lookup on the error message suggests that the most likely reason for the error is an attempt to load a 32-bit dll into a 64-bit process. Are you sure you copied all the files from x64 package? You previously mentioned that you included Microsoft C++ runtime dlls (msvcp120.dll and msvcr120.dll) in the folder referenced by the example. Most likely you already have these files in the system folder. Try deleting them from EikonNetSDK folder and running the example again. These two files should then be picked up from the system folder.

  • Alex Putkov.1
    Alex Putkov.1

    I just realized I previously instructed you to use EikonPipeDll.dll and I18nResource.dll from Eikon install folder. Try replacing them with the namesake files from x64 package.
    If you still get the same error message, check all the files in the EikonNetSDK folder to see if any of them are 32-bit. Here's one way to do this.
    https://superuser.com/questions/358434/how-to-check-if-a-binary-is-32-or-64-bit-on-windows

Categories