vb.net MySqlConnection' 在命名空间 'MySql.Data.MySqlClient [Visual Basic -VS2008] 中不明确
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MySqlConnection' is ambiguous in the namespace 'MySql.Data.MySqlClient [Visual Basic -VS2008]
提问by Alecsx MKD
I'm trying to make a connection to a database [MySql] on localhost but I have a problem ....
我正在尝试与本地主机上的数据库 [MySql] 建立连接，但我遇到了问题......
This is the code : (it's a class called ConnectDateBase.vb...)
这是代码：（这是一个名为 ConnectDateBase.vb 的类...）
Imports MySql.Data.MySqlClient
Public Class ConnectDateBase
Public Class MySQLConnect
Public db_con As New MySqlConnection
Private Sub connect()
Dim dbname As String = "DBNAME"
Dim dbhost As String = "localhost"
Dim user As String = "root"
Dim pass As String = "DBPASSWORD"
If Not db_con Is Nothing Then db_con.Close()
db_con.ConnectionString = String.Format("server={0}; user id={1}; password={2}; database={3}; pooling=false", dbhost, user, pass, dbname)
Try
db_con.Open()
Catch ex As MySqlException
MsgBox("Database Error:[" & ex.Message & "]")
End Try
End Sub
End Class
This is my problem: Error List ->
这是我的问题：错误列表->
- MySqlConnection' is ambiguous in the namespace 'MySql.Data.MySqlClient
- MySqlException' is ambiguous in the namespace 'MySql.Data.MySqlClient [Errors have identical type]
- MySqlConnection' 在命名空间 'MySql.Data.MySqlClient 中是不明确的
- MySqlException' 在命名空间 'MySql.Data.MySqlClient 中是不明确的 [错误具有相同的类型]
I tried to add reference but i don't know what reference to add...( Mysql.web or Mysql.data) both failed ... As OS I'm using : windows xp sp3 with NET Framework 3.5 and MySql Connector NET 6.8.3 installed. Know anyone how to fix this (logical error ) please ...
我试图添加引用，但我不知道要添加什么引用......（Mysql.web 或 Mysql.data）都失败了......作为我使用的操作系统：windows xp sp3 with NET Framework 3.5 和 MySql Connector NET 6.8.3 安装。知道任何人如何解决这个（逻辑错误）请...
采纳答案by har07
It seems that compiler get confused because there are several assembly references containing same namespace. Try to remove all references related to MySql, then add reference only to Mysql.data.dll.
编译器似乎很困惑，因为有几个程序集引用包含相同的命名空间。尝试删除与 MySql 相关的所有引用，然后仅添加对Mysql.data.dll.
