【发布时间】：2011-12-04 06:06:38
【问题描述】：
当前正在运行 Mono。我在位于/usr/lib/mono/gac 的gac 文件夹中加载了MySQL 并安装了connector/net。问题是每次我尝试使用简单的连接测试运行它时，都会出现以下错误：
** (/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，它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);
}
}
}
【问题讨论】：
-
您是否检查过与 MONO_PATH 变量相同的文件夹？
-
MONO_PATH 变量在哪里？
-
你是如何安装程序集的？你用过 gacutil 吗？
-
MONO_PATH 是一个环境变量，正如 Jon 所说，您是否使用 gacutil 向 GAC 注册它，将其放在文件夹中并不总是有效。
-
更新：我在目录上做了一个导出 MONO_PATH，不幸的是我什么也得不到。
标签： c# mysql connector-net idbconnection