Could not load file or assembly crdb_adoplus.dll

Question

For the following error:

Could not load file or assembly ‘file:///C:\Program Files\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll’ or one of its dependencies.

Is there any way to resolve this error other than through the solution:

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0"/>
</startup>

That solution not work in my application

Answer 1

Use only

<startup useLegacyV2RuntimeActivationPolicy="true">
</startup>

It works for all frameworks!

Answer 2

This stuff basically happens, if you have correct setup of SBO (I wish you so:)), that between different components of your SBO SDK there are assemblies with different .NET version. Check if you have some old version of SAP BO SDK installed on your machine too. Hope this helps.