CODEWITHSUNDEEP
winformsnpgsqlsqlconnection
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ZedZip

Reputation: 6468

WinForms: Could not load System.Memory

I do refactoring legacy WinForms app. Now it is NET Framework 4.8 based app working with SQL Server and PostgreSQL.

But during the execution this code:

SqlConnection connect = new SqlConnection();
connect.ConnectionString = connectionString; // <-- here error happens

I receive the error:

------------ System.IO.FileLoadException HResult=0x80131040 Message=Could not load file or assembly 'System.Memory, Version=4.5.5.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Source=Microsoft.Data.SqlClient StackTrace: at Microsoft.Data.LocalDBAPI.GetLocalDbInstanceNameFromServerName(String serverName) at Microsoft.Data.SqlClient.SqlConnectionString..ctor(String connectionString) at Microsoft.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous) at Microsoft.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(DbConnectionPoolKey key, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions& userConnectionOptions) at Microsoft.Data.SqlClient.SqlConnection.ConnectionString_Set(DbConnectionPoolKey key) at Microsoft.Data.SqlClient.SqlConnection.set_ConnectionString(String value)

Inner Exception 1: FileLoadException: Could not load file or assembly 'System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

It occurs after I have added Npgsql 7.0.4 Nuget package.

How to fix it?

The simplified code:

//Installed Nuget System.Memory (fresh dll: 4.5.5.0)
// using Microsoft.Data.SqlClient
SqlConnection connect = new SqlConnection(connectionString);

and the message:

System.IO.FileLoadException: 'Could not load file or assembly 'System.Memory, Version=4.5.5.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)'

Upvotes: 0

Views: 392

Answers (0)

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