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POException : Collection was modified; enumeration operation may not execute on form Close in setup project
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  1. POException : Collection was modified; enumeration operation may not execute on form Close in setup project
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    copied!<p>I created a setup project of window form application built in C# 4.0. I tested the setup in my test PC which have Vs 2010 Ultimate installed in it and its working fine in it. </p> <p>I later on to test the application I installed it another machine which does not have VS in it. Every time I try to close the form, it ends up with this exception. The exception is occurring in some forms not in all. I have checked the code and and there is no difference in it(this.close()). </p> <p>While building the setup I am using .Net Framework 4 Client Profile as Target Framework. Microsoft.VisualBasic.PowerPacks.Vs is added in setup. My not using tab strip nor trying to close multiple form.</p> <p>This is the complete error Unhandled exception has occurred in your application. If you click continue, the application will ignore this error and attempt to continue. If you click quit, the application will close rimmediately. </p> <p>See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.</p> <pre><code>************** Exception Text ************** System.InvalidOperationException: Collection was modified; enumeration operation may not execute. at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource) at System.Collections.Generic.List`1.Enumerator.MoveNextRare() at System.Collections.Generic.List`1.Enumerator.MoveNext() at Microsoft.VisualBasic.PowerPacks.ShapeCollection.Dispose(Boolean disposing) at Microsoft.VisualBasic.PowerPacks.ShapeContainer.Dispose(Boolean disposing) at System.ComponentModel.Component.Dispose() at System.Windows.Forms.Control.Dispose(Boolean disposing) at System.ComponentModel.Component.Dispose() at System.Windows.Forms.Control.Dispose(Boolean disposing) at System.ComponentModel.Component.Dispose() at System.Windows.Forms.Control.Dispose(Boolean disposing) at System.Windows.Forms.Form.Dispose(Boolean disposing) at ezyBizManager.Masters.frmUsers.Dispose(Boolean disposing) at System.ComponentModel.Component.Dispose() at System.Windows.Forms.Form.WmClose(Message&amp; m) at System.Windows.Forms.Form.WndProc(Message&amp; m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message&amp; m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&amp; 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: 4.0.30319.1 (RTMRel.030319-0100) CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll ---------------------------------------- ezyBizManager Assembly Version: 1.0.0.0 Win32 Version: 1.0.0.0 CodeBase: file:///C:/Program%20Files/Microsoft/COE/ezyBizManager.exe ---------------------------------------- System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- System Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Data.Linq Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Data.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Data.Linq.dll ---------------------------------------- System.Core Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll ---------------------------------------- System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 (RTMRel.030319-0100) 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: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- System.Data Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 (RTMRel.030319-0100) 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: 4.0.30319.1 (RTMRel.030319-0100) 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: 4.0.30319.1 (RTMRel.030319-0100) CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll ---------------------------------------- System.Xml.Linq Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.Linq.dll ---------------------------------------- Anonymously Hosted DynamicMethods Assembly Assembly Version: 0.0.0.0 Win32 Version: 4.0.30319.1 (RTMRel.030319-0100) CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/mscorlib/v4.0_4.0.0.0__b77a5c561934e089/mscorlib.dll ---------------------------------------- Microsoft.VisualBasic.PowerPacks.Vs Assembly Version: 10.0.0.0 Win32 Version: 10.0.20911.1 CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic.PowerPacks.Vs/10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.PowerPacks.Vs.dll ---------------------------------------- Microsoft.VisualBasic Assembly Version: 10.0.0.0 Win32 Version: 10.0.30319.1 built by: RTMRel CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll ----------------------------------------************** JIT Debugging ************** </code></pre> <p>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.</p> <p>For example:</p> <pre><code>&lt;configuration&gt; &lt;system.windows.forms jitDebugging="true" /&gt; &lt;/configuration&gt; </code></pre> <p>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.</p> <p>[Edited:] I am using image to close the form.</p> <pre><code>private void imgClose_Click(object sender, EventArgs e) { this.Close(); } </code></pre>
 

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