Value Cannot Be Null. Parameter Name In Vb.net

One of our controls got renamed, so it was CtlBlah instead of ctlBlah. Parameter name: source at Microsoft.CodeAnalysis.VisualBasic.VisualBasicCompilation.ClassifyConversion(ITypeSymbol source, ITypeSymbol destination) at Microsoft.CodeAnalysis.VisualBasic.VisualBasicExtensions.ClassifyConversion(Compilation compilation, ITypeSymbol source, ITypeSymbol destination) at Microsoft.CodeAnalysis.VisualBasic.Utilities.SpeculationAnalyzer.ConversionsAreCompatible(ExpressionSyntax originalExpression, ITypeSymbol originalTargetType, ExpressionSyntax newExpression, ITypeSymbol newTargetType) at Microsoft.CodeAnalysis.Shared.Utilities.AbstractSpeculationAnalyzer`8.ReplacementBreaksCompoundAssignment(TExpressionSyntax originalLeft, TExpressionSyntax originalRight, TExpressionSyntax newLeft, Not sure about your problem, but my debugger didn't come up with any specific line of code that had an error. View our list of code downloads. navigate here

Did it open normally? Attach a file File Name Submitted By Submitted On File Size RunProjectCode.png arnie 8/11/2015 38 KB Microsoft Connect Terms of Use Trademarks Privacy Statement © 2016 Microsoft Please wait... This happens when an event handler contains a reference to a non-existing object. During my coding, I happen to get this error continuously.

Reply With Quote Feb 14th, 2013,12:01 PM #21 dunfiddlin View Profile View Forum Posts PowerPoster Join Date Jun 2012 Posts 8,241 Re: Help !!! "value cannot be null" Paramater name: objectType In Solution Explorer, if you double click My Project, and then click the References Tab, I had a Reference to SpotLight. Can I sell a stock immediately Symmetric group action on Young Tableaux Is it possible to hand start modern planes? If my post was helpful to you, then express your gratitude using Rate this Post.

• I plan to try to look into whether there are any binary (non-visible) characters in the lines, but the code was entered using the VS editor so I don't expect to
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• Just: 1.
• Also, is it a compilation error or a run time error?
• Posted by vasmatics on 10/11/2011 at 1:35 PM Open the vb code of the form (not the designer vb, but the "normal one"), and check out the handles.
• Can a president win the electoral college and lose the popular vote Why were pre-election polls and forecast models so wrong about Donald Trump?
• Please provide some more clarity into it. 3 solutions Top Rated Most Recent Rate this: Please Sign up or sign in to vote.
• Parameter name: item) error.

however, this is preventing me from checking in to TFS shemulik1 commented Jan 20, 2016 any solution (it is marked as closed!!!!!!!!!!!!! .NET Foundation member jmarolf commented Jan 20, 2016 @shemulik1 Please give us a demo project to demonstrate this issue so that we can conduct further research.It would be greatly appreciated if you could provide us with that information as quickly restart vb and it will say it has resolved a namespace error 3. It is a form that serves as a base form to other forms in solution and oddly, the forms that inherit from this form load into the designer correctly without error

From my research, I am not the only person who had the fault appear making any explicit code changes in the area where the problem seems to manifest itself.There are LOTS Friday, May 04, 2012 10:45 AM 0 Sign in to vote try unchecking the "enable clickonce security settings" checkbox in the security tab of the application properties(Projects Tab -> "Project Name" Again the Same error please help me. If you have any feedback, please tell us.

Parameter name: activationContext” è You can handle the UnhandledException event of the application and get all the information available about the exception like this: Project menu -> Properties -> Reload to refresh your session. Value cannot be null P: n/a Paul Hi, I'm new to .NET and I'm trying to run through the tutorial "Creating a Web Application Using VB" As I follow the directions, changing the class modifier from 'friend" to 'public' in VB.NET solves this issue for me Posted by CliffW52 on 12/5/2012 at 3:33 PM I converted a project from VS 8 to

Please double check whether there is circular reference in your project. Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 901 Star 6,505 Fork 1,555 dotnet/roslyn Code Issues 3,232 Pull requests 144 Projects This method or property cannot be called on null values using IF statement0Value Cannot be null, Parameter name: dataTable Hot Network Questions Why were pre-election polls and forecast models so wrong Need to download code?

You are here voluntarily, as are we all. check over here But if this is your litle clubhouse and you do not want anyone else posting here I will more than happily refrain. Comments (12) | Workarounds (7) | Attachments (1) Sign in to post a comment. gafter added the Area-Analyzers label Nov 11, 2015 srivatsn added the Bug label Nov 11, 2015 srivatsn added this to the 1.2 milestone Nov 11, 2015 srivatsn assigned mavasani and unassigned

Proposed as answer by Faisal Imam Tuesday, June 12, 2012 3:55 PM Sunday, December 04, 2011 3:00 PM 0 Sign in to vote Just had the same issue, it was due I downloaded the version 2014.4.6-beta2. However, it's maybe a duplicate of the post I cited, just the language is different. –Yoann ARNAUD Oct 23 '15 at 10:48 I believe your actual problem is solved http://softwaredevelopercertification.com/value-cannot/value-cannot-be-null-parameter-name.php You are currently viewing the BOOK: Beginning ASP.NET 1.1 section of the Wrox Programmer to Programmer discussions.

true: false) // Debug THAT! That worked. Parameter name: activationContext vs 2010 express win 7 sorry bad english tnx Friday, September 10, 2010 6:47 PM Answers 1 Sign in to vote Hi Ddr, Welcome to MSDN forums.

Stevie's answer allows you to keep the forms event in tact. –Jeremy Thompson Mar 26 '15 at 23:12 Oh, and Stevie's answer was not a solution to my particular

Any code generation features that generate fully qualified member accesses and depend on the Simplifier to remove them if appropriate (or that explicitly check this option) will now generate non-compliant code Also if after the error I press the link "Ignore and Continue" it shows the form fine at design time, but why it is failing in the first place? Reply With Quote Jul 28th, 2010,09:59 AM #8 cicatrix View Profile View Forum Posts PowerPoster Join Date Dec 2009 Location Moscow, Russia Posts 3,654 Re: Help !!! "value cannot be null" Rude would be to have called the poster names, like you did.

Posted by sougata ash on 8/11/2012 at 2:33 AM here is the solution -1. Scary IDE is bad idea for keeping developers around...even if many features good, typing is now getting really too strict, and IDE essentially is a 'blind alley'...have lost many hours for Here's the information it shows in the error list: Warning AD0001 Analyzer 'Microsoft.CodeAnalysis.VisualBasic.CodeFixes.SimplifyTypeNames.VisualBasicSimplifyTypeNamesDiagnosticAnalyzer' threw an exception of type 'System.ArgumentNullException' with message 'Value cannot be null. weblink Parameter name: element msbuild : Message: Value cannot be null.

In situations where people fail to provide information that is obviously relevant, I find that a bit of sarcasm is likely to remind them not to do the same thing next Some forms are opened normally, but some give the mentioned mistake. I have a similar problem. http://social.msdn.microsoft.com/Forums/en-US/winformssetup/thread/b5ac9ae2-fffa-4d5a-b8f8-d8fdc00b7733 “My app is called SpotLight.

D.I.C Head Reputation: 5 Posts: 62 Joined: 17-November 09 Value Cannot Be Null Parameter: Item Posted 24 February 2010 - 01:17 AM I tried to execute a code that will display Dealing With Dragonslayers Previous examples of large scale protests after Presidential elections in US?