OleDb: Возникло исключение: «System.InvalidOperationException» в System.Data.dll - PullRequest
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OleDb: Возникло исключение: «System.InvalidOperationException» в System.Data.dll

0 голосов
/ 12 марта 2019

Я пытаюсь подключиться к базе данных mysql, хранящейся на моем ноутбуке, я использую oledb для подключения к нему, но я получаю сообщение об ошибке (c #): 

Exception thrown: 'System.InvalidOperationException' in System.Data.dll

С линии: 

conn.Open();

Полный код: 

using System;
using System.Data;
using System.Data.OleDb;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;


namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            OleDbConnection conn = new OleDbConnection();
            conn.ConnectionString = @"Provider=MySQLProv; Data Source=C:\ProgramData\MySQL\MySQL Server 8.0\Data\singe; User Id=******; Password=*************;";

            //error is here
            //-------------
            conn.Open();
            //-------------

            conn.Close();

            Console.ReadLine();

        }

    }

}

Полный вывод, который я получаю, таков: 

'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities\14.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities.Sync\14.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.Sync.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\14.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'D:\Visual Studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\bin\Debug\ConsoleApplication2.vshost.exe'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Data.DataSetExtensions\v4.0_4.0.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.CSharp\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.CSharp.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Net.Http\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Http.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread 0x2324 has exited with code 0 (0x0).
The thread 0x409c has exited with code 0 (0x0).
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'd:\visual studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\bin\Debug\ConsoleApplication2.exe'. Symbols loaded.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll'. Cannot find or open the PDB file.
'ConsoleApplication2.vshost.exe' (CLR v4.0.30319: ConsoleApplication2.vshost.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Exception thrown: 'System.InvalidOperationException' in System.Data.dll

-Я проверил, что я использую правильную строку подключения.

-Я проверил расположение файла базы данных.

-Я могу подключаться и выполнять запросы к базе данных, используя рабочее место и popsql.

- Я использую Visual Studio 2015 (2017 не работает на моем ноутбуке)

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