Could not load file or assembly crdb_adoplus.dll

Please use this code.
It may be helpful for you.

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>

This is slightly different than you.
For more details visit this link Crystal Report Viewer

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