Could not load file or assembly X or one of its dependencies.

In Visual Studio;

Solution Explorer-Project-Properties-Application.

Check "Auto-Generate binding redirects"

When this is selected, versions are specified in the web.config file after the Nuget package updates.

When is binding necessary?

If there is more than one of the same dll, it determines which version of this dll the project will use.

Nuget Package Management: In old projects, packages.config was used. PackageReference is now used in new projects.

Visual Studio - Tools - Nuget Package Manager - Package Manager Settings Nuget Package Manager - General - Under Package Management. Select Default package management format to : PackageReference

Information in Visual Studio Output :

Consider app.config remapping of assembly "Google.Apis, Culture=neutral, PublicKeyToken=4b01fa6e34db77ab" from Version "1.67.0.0" [] to Version "1.68.0.0" [C:\Users\Ferhat.nuget\packages\google.apis\1.68.0\lib\net462\Google.Apis.dll] to solve conflict and get rid of warning.

Consider app.config remapping of assembly "Google.Apis.Auth, Culture=neutral, PublicKeyToken=4b01fa6e34db77ab" from Version "1.67.0.0" [] to Version "1.68.0.0" [C:\Users\Ferhat.nuget\packages\google.apis.auth\1.68.0\lib\net462\Google.Apis.Auth.dll] to solve conflict and get rid of warning.

Consider app.config remapping of assembly "Google.Apis.Core, Culture=neutral, PublicKeyToken=4b01fa6e34db77ab" from Version "1.67.0.0" [] to Version "1.68.0.0" [C:\Users\Ferhat.nuget\packages\google.apis.core\1.68.0\lib\net462\Google.Apis.Core.dll] to solve conflict and get rid of warning.

Consider app.config remapping of assembly "System.Runtime.CompilerServices.Unsafe, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" from Version "4.0.4.1" [] to Version "6.0.0.0" [C:\Users\Ferhat.nuget\packages\system.runtime.compilerservices.unsafe\6.0.0\lib\net461\System.Runtime.CompilerServices.Unsafe.dll] to solve conflict and get rid of warning.

C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2401,5): warning MSB3247: Found conflicts between different versions of the same dependent assembly. In Visual Studio, double-click this warning (or select it and press Enter) to fix the conflicts; otherwise, add the following binding redirects to the "runtime" node in the application configuration file:

    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="Google.Apis" culture="neutral" publicKeyToken="4b01fa6e34db77ab" />
                <bindingRedirect oldVersion="0.0.0.0-1.68.0.0" newVersion="1.68.0.0" />
            </dependentAssembly>
        </assemblyBinding>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="Google.Apis.Auth" culture="neutral" publicKeyToken="4b01fa6e34db77ab" />
                <bindingRedirect oldVersion="0.0.0.0-1.68.0.0" newVersion="1.68.0.0" />
            </dependentAssembly>
        </assemblyBinding>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="Google.Apis.Core" culture="neutral" publicKeyToken="4b01fa6e34db77ab" />
                <bindingRedirect oldVersion="0.0.0.0-1.68.0.0" newVersion="1.68.0.0" />
            </dependentAssembly>
        </assemblyBinding>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" culture="neutral" publicKeyToken="b03f5f7f11d50a3a" />
                <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>