Could not load file or assembly 'System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies.

Describe the bug

When i add nuget package Microsoft.SqlServer.SqlManagementObjects 170.18.0 for SMO APIs(it also adds lot of dependecy packages), One of the dependency is Microsoft.Data.SqlClient, which is using old version of System.Memory 4.0.1.1 while package downloads 4.0.1.2.

we always get exception on SqlConnection.Open() function call. below is the fusion log:

Pre-bind state information LOG: DisplayName = System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 (Fully-specified) LOG: Appbase = file:///C:/ABB.SDS.SDK/host/Server/ LOG: Initial PrivatePath = NULL Calling assembly : Microsoft.Data.SqlClient, Version=5.0.0.0, Culture=neutral, PublicKeyToken=23ec7fc2d6eaa4a5.

LOG: This bind starts in LoadFrom load context. WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load(). LOG: Using application configuration file: C:\ABB.SDS.SDK\host\Server\MOMServices.exe.Config LOG: Using host configuration file: LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config. LOG: Post-policy reference: System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/System.Memory.DLL. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/System.Memory/System.Memory.DLL. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/Apps/Configurator/desktop/System.Memory.DLL. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/Apps/Configurator/desktop/System.Memory/System.Memory.DLL. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/System.Memory.EXE. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/System.Memory/System.Memory.EXE. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/Apps/Configurator/desktop/System.Memory.EXE. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/Apps/Configurator/desktop/System.Memory/System.Memory.EXE. LOG: Attempting download of new URL file:///C:/ABB.SDS.SDK/host/Server/Apps/ABB.SDS.Batch.Accessors.Server/server/System.Memory.DLL. WRN: Comparing the assembly name resulted in the mismatch: Revision Number

To reproduce

Use Microsoft.SqlServer.SqlManagementObjects 170.18.0 and exectute SqlConnection

Partial code listings, or multiple fragments of code, will slow down our response or cause us to push the issue back to you to provide code to reproduce the issue.

using (SqlConnection con = new SqlConnection())
            {
               con.ConnectionString = Utility.GetConnectionString(connectionParameter);
               if (connectionParameter.UseAuthenticationMode == AuthenticationMode.Sql)
               {
                  SqlCredential cred = new SqlCredential(connectionParameter.UserName, connectionParameter.Password);
                  con.Credential = cred;
               }

               Server server = new Server(new ServerConnection(con));
               // Open connection.
               con.Open();
               if (con.State != System.Data.ConnectionState.Open)
                  return false;

               if (server.VersionMajor < connectionParameter.ServerVersionNumber)
               {
                  throw new NotSupportedException("This SQL server version is not supported. The minimum version number is " + connectionParameter.ServerVersionNumber.ToString(CultureInfo.CurrentCulture));
               }

               return true;
            }

Expected behavior

A clear and concise description of what you expected to happen.

Further technical details

Microsoft.Data.SqlClient version: Nuget version 5.1.1 .NET target: 4.8 SQL Server version: 2019 Operating system: Windows Server 2016

[chandrashekharjoshi-abb]

Assembly redirect did not work for, since it created chain of errors, after solving one another appears. for me final solution was to do below changes in package.config, changed to lower versions for below package.

<package id="System.Memory" version="4.5.4" targetFramework="net48" />
<package id="System.Runtime.CompilerServices.Unsafe" version="4.5.3" targetFramework="net48" />

[JRahnama]

I faced similar issue while working on WinForms. I added the nuget from Nuget.org through visual studio nuget package manager and inside the app.config I set the value to be like below somewhere inside configuration tag:

<runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe"
                          publicKeyToken="b03f5f7f11d50a3a"
                          culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.6.0"
                         newVersion="4.0.6.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

Depending on what version you installed you can redirect to the correct number. I did not check if adding the package could fix the issue without changing the app.config.