目前正在运行单声道。我加载了 MySQL 并在位于/usr/lib/mono/gac 的 gac 文件夹中安装了 connector/net。问题是每次我尝试使用简单的连接测试运行它时，我都会收到以下错误:

** (/home/holland/Code/csharp/test/Test/bin/Debug/Test.exe:10278): WARNING **: The following assembly referenced from /home/holland/Code/csharp/test/Test/bin/Debug/Test.exe could not be loaded:
     Assembly:   MySql.Data    (assemblyref_index=1)
     Version:    6.4.4.0
     Public Key: c5687fc88969c44d
The assembly was not found in the Global Assembly Cache, a path listed in the MONO_PATH environment variable, or in the location of the executing assembly (/home/holland/Code/csharp/test/Test/bin/Debug/).


** (/home/holland/Code/csharp/test/Test/bin/Debug/Test.exe:10278): WARNING **: Could not load file or assembly 'MySql.Data, Version=6.4.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies.

** (/home/holland/Code/csharp/test/Test/bin/Debug/Test.exe:10278): WARNING **: Missing method .ctor in assembly /home/holland/Code/csharp/test/Test/bin/Debug/Test.exe, type MySql.Data.MySqlClient.MySqlConnection

** (/home/holland/Code/csharp/test/Test/bin/Debug/Test.exe:10278): WARNING **: Could not load file or assembly 'MySql.Data, Version=6.4.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies.

** (/home/holland/Code/csharp/test/Test/bin/Debug/Test.exe:10278): WARNING **: Missing method .ctor in assembly /home/holland/Code/csharp/test/Test/bin/Debug/Test.exe, type MySql.Data.MySqlClient.MySqlConnection

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'MySql.Data, Version=6.4.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies.
File name: 'MySql.Data, Version=6.4.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d'
  at Test.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0 

如果我没记错的话，应该是一个汇编文件

这是我的代码:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using MySql.Data.MySqlClient;

namespace Test
{
    public class Database
    {
        public Database()
        {

        }

        public static IDbConnection MainConnect()
        {
            string connectionInfo = 
            "Server=localhost;"+
            "Database=ecom_main;"+
            "User ID=root;"+
            "Password=xxxxxxx"+
            "Pooling=false;";

            return new MySqlConnection(connectionInfo);
        }

using System;
using System.Data;
using MySql.Data.MySqlClient;

namespace Test
{
    class MainClass
    {
        public static void Main (string[] args)
        {
            IDbConnection dbMain = Database.MainConnect();

            Console.WriteLine(dbMain);
        }
    }
}

最佳答案

我遇到了同样的问题，我按照以下步骤解决了它:

1. 复制 dll 区分大小写:

#cp mysql.data.dll MySql.Data.dll

1. 安装连接器

   #gacutil -i -package 2.0 MySql.Data.dll

   这将安装在 GAC 中，并在/usr/lib/mono/2.0 中添加一个符号链接(symbolic link)
2. 如果程序集没有出现在monodevelop中，那么可以在/usr/lib/mono/2.0中添加对项目中dll的引用

+信息:http://dev.mysql.com/doc/refman/5.1/en/connector-net-installation-unix.html

关于C# MySql 连接器/网络问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7708704/