系统.ArgumentException:设置DataSource属性时，不能修改项集合

我是windows编程的新手，我创建了一个在64位机器上运行的应用程序。该应用程序也有一个水晶报告。该应用程序在我的机器上运行良好，但是当我试图在其他机器上安装它时，它会抛出以下错误。我已经在目标PC上安装了水晶报告运行时13，以使其工作，没有任何成功。下面是我在打开页面时遇到的错误。

see the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.ArgumentException: Items collection cannot be modified when the DataSource property is set.
   at System.Windows.Forms.ComboBox.CheckNoDataSource()
   at System.Windows.Forms.ComboBox.ObjectCollection.Insert(Int32 index, Object item)
   at TO_Automation.MovedItems.FillList()
   at TO_Automation.MovedItems.MovedItems_Load(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at MaterialSkin.Controls.MaterialForm.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: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
TO Automation
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/Whites/TOA/TO%20Automation.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    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: 4.6.81.0 built by: NETFXREL2
    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: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
MaterialSkin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/Whites/TOA/MaterialSkin.DLL
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Transactions
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.EnterpriseServices
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.81.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
CrystalDecisions.CrystalReports.Engine
    Assembly Version: 13.0.2000.0
    Win32 Version: 13.0.12.1494
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/CrystalDecisions.CrystalReports.Engine/13.0.2000.0__692fbea5521e1304/CrystalDecisions.CrystalReports.Engine.dll
----------------------------------------
CrystalDecisions.Shared
    Assembly Version: 13.0.2000.0
    Win32 Version: 13.0.12.1494
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/CrystalDecisions.Shared/13.0.2000.0__692fbea5521e1304/CrystalDecisions.Shared.dll
----------------------------------------
System.Data.DataSetExtensions
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Data.DataSetExtensions/v4.0_4.0.0.0__b77a5c561934e089/System.Data.DataSetExtensions.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.

这个异常的原因是什么?