mysql server install error

[jin hyo cho]

I tried to install mysql server and I can not install because of the following error.
please answer about my question.

=== error message ======================================
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at WexInstaller.Wizards.AddProductsWizard.InstallTypePage.SetPackageList()
at WexInstaller.Wizards.AddProductsWizard.InstallTypePage.Next()
at WexInstaller.Wizards.Wizard.WizardNextButton_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3260.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
MySQLInstaller
Assembly Version: 1.4.27.0
Win32 Version: 1.4.27.0
CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Installer%20for%20Windows/MySQLInstaller.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
MySQLInstaller.Core
Assembly Version: 1.4.27.0
Win32 Version: 1.4.27.0
CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Installer%20for%20Windows/MySQLInstaller.Core.DLL
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1099.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Microsoft.GeneratedCode
Assembly Version: 1.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Microsoft.GeneratedCode
Assembly Version: 1.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
WindowsBase
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
Microsoft.GeneratedCode
Assembly Version: 1.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Microsoft.GeneratedCode
Assembly Version: 1.0.0.0
Win32 Version: 4.7.3221.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
MySQL.Utility
Assembly Version: 7.2.1.0
Win32 Version: 7.2.1
CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Installer%20for%20Windows/MySQL.Utility.DLL
----------------------------------------
System.Data
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3260.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
StandardPlugins
Assembly Version: 1.4.27.0
Win32 Version: 1.4.27.0
CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Installer%20for%20Windows/StandardPlugins.DLL
----------------------------------------
MySql.Data
Assembly Version: 8.0.11.0
Win32 Version: 8.0.11.0
CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Installer%20for%20Windows/MySql.Data.DLL
----------------------------------------
System.ServiceProcess
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1099.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceProcess/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.ServiceProcess.dll
----------------------------------------
Accessibility
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1099.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

===============================================================