John February 07, 2014 # re: Visual Studio 2013 'Could not evaluate Expression' Debugger Abnormality I've encountered this problem often since upgrading to VS 2013. Join them; it only takes a minute: Sign up “Unable to evaluate the expression” in Visual Studio 2012 Debug Mode up vote 2 down vote favorite My Visual Studio 2012 installation No symbols have been loaded for this document in a Silverlight application1Visual Studio 2013 - Debugging MVC code with ViewBag properties deathly slow and unusable52Unable to debug managed code using visual Was really annoying! http://bovbjerg.net/visual-studio/visual-studio-debugger-cannot-evaluate-expression.php
Guy Kroizman June 01, 2014 # re: Visual Studio 2013 'Could not evaluate Expression' Debugger Abnormality There is an update from MS. Deleting old break points made no difference but using the compatibility debugger mode fixed the problem. Thank you very much!! share|improve this answer answered May 2 '13 at 12:41 Miloš 33716 add a comment| up vote 2 down vote The following link worked for me: http://www.codeproject.com/Articles/534760/e-cCannotplusevaluateplusexpressionplusbecaus share|improve this answer answered Jun
The solution file ended up containing a number of oddly duplicated breakpoints that looked something like this: Notice the duplicated global.asax.cs debugger breakpoint entries that are nested below the main reference. Was it legal to rant against trick or treating via loudspeaker during halloween? TIKZ: foreach not compatible with calc-library? Typically, they get the below error message during debugging: “Cannot evaluate expression because the code of the current method is optimized.” Assessment: In .NET, “Function Evaluation (funceval)” is the ability of
Problem description: This is one the common error faced by a lot of Visual Studio users. TSA broke a lock for which they have a master key. Not the answer you're looking for? The Debugger Is Unable To Evaluate This Expression 2015 sure hope so :) clau137 April 28, 2014 # re: Visual Studio 2013 'Could not evaluate Expression' Debugger Abnormality Just had the same problem and the compatibility flag fixed it.
I resolved this by unchecking the Optimize Code property under project properties. Visual Studio 2012 Unable To Evaluate Expression SP2 is available as well, but not as a final release. Could it be related to multi-threading? share|improve this answer answered Jun 19 '15 at 14:26 Overlord Zurg 1,025815 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google
Deleting the breakpoints and reattaching to debug again was all that was needed. Visual Studio 2013 Debugger Not Showing Variable Values First Name Please enter a first name Last Name Please enter a last name Email We will never share this with anyone. May 19 '14 at 19:03 add a comment| up vote 0 down vote We have a custom expression evaluator and our own language and this warning message to change the settings Learn and Share… HomeAbout RSS ← "Invalid postback or callbackargument" Unable to evaluate expression because the code is optimized or a native frame is on top of the callstack → "Cannot
Is it a single project or are multile projects included? –Tim Schmelter Jan 16 '14 at 16:09 @jlew only have one application in the app pool. c# share|improve this question edited Aug 22 '13 at 11:36 Noich 3,07274176 asked Aug 22 '13 at 10:39 vysakh 1311314 3 You need to post some code. Could Not Evaluate Expression Entity Framework License This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Share email twitter facebook linkedin reddit google+ About the Author Sandeep Could Not Evaluate Expression Visual Studio 2015 By using the Standard toolbar or the Configuration Manager, you can switch between Debug & Release.
share|improve this answer answered Feb 17 '14 at 10:23 Jesse 589719 Thanks! news Problem with function inside brackets. All rights reserved. Here is the answer which solved for me: I have set the flag "use managed compatibility mode" in Tools | Options | Debugger | General. Visual Studio 2013 Debugging Not Working
In VS, the optimize box was unchecked, yet optimization certainly seemed to be occuring as far as the debugger was concerned. share|improve this answer answered Sep 1 '15 at 14:06 Pavel Tsybulivskyi 808 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Join them; it only takes a minute: Sign up unable to evaluate expression whilst debugging up vote 21 down vote favorite 4 When debugging asp.net code (running against IIS, and using have a peek at these guys share|improve this answer answered Sep 2 '15 at 16:21 riQQ 4616 add a comment| up vote 1 down vote One other thing that you may do is, create a file with
Thanks! Unable To Evaluate The Expression Find the "unwrapped size" of a list Build me a brick wall! I think I found something that fixes this: Make sure the following checkbox is checked in VS: Tools - Options - Debugging - General - Use Managed Compatibility Mode For reference,
asked 2 years ago viewed 10365 times active 6 months ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Visit Chat Linked 52 Unable to debug managed code using visual You can't evaluate anything at that point, but the call-stack of your current thread will probably clearly indicate the cause. Even the debugger is doing pretty good job with new async/await model. Visual Studio 2015 Managed Compatibility Mode Saved me a lot of head-scratching! :-) David Madi March 18, 2014 # re: Visual Studio 2013 'Could not evaluate Expression' Debugger Abnormality Helped me a lot.
Linux questions C# questions ASP.NET questions fabric questions SQL questions discussionsforums All Message Boards... It is a global setting. For details, take a look at the link as he explained it nicely as a story :) Am happy it worked, otherwise I just had to load project in vs 2k12 http://bovbjerg.net/visual-studio/visual-studio-2008-cannot-show-visual-studio-tools-applications-editor.php I had the same problem migrating solutions from VS2010 and clearing all of the breakpoints fixed the problem.
It's a real pain in the butt and counterproductive to have continually restart VS while your trying to track down issues. Still better than a non-working debugger :-) The debugger folks mentioned they have a few bug fixes that will make it into the next Visual Studio update that are likely to What does the call stack show? Also odd was that some of these breakpoints were dated and didn't actually show up in the IDE, and none of these breakpoints actually show up in the source code editor.
Other Fixes The debugger folks were mentioning that this 'expression evaluation' problem has come up on a few occasions for developers, so there are other issues besides my odd corrupted breakpoints In my case it was "Prefer 32" checkbox checked. How to reply? I still see the warning each time I attack to w3wp.exe.
The solution was to add this property to the project file, and reload. I've turned off all the "Enable the Visual Studio hosting process" for all our projects and also added the property to our clients projects. EDIT on 26th June 2014 I have tested my apps and luckily for me everything is working nicely :). In my case it was solved via solution-rebuild.
Thanks a Lot! Not the answer you're looking for? I ended up updating the sln file to use a newer version of VS (VisualStudioVersion = 12.0.21005.1) and build clean / rebuild. Release is fully optimized and thus will lead to the error in discussion.
Not very practical. Subscribe to our monthly newsletter for tech news and trends Membership How it Works Gigs Live Careers Plans and Pricing For Business Become an Expert Resource Center About Us Who We Then I imported my saved settings and the problem stays fixed keeping all my original settings. Wouldn’t it be good if you could write code like this? (CODE) In .NET 3.5, this is possible… .NET Programming Installing VisualVM Launcher in Eclipse Video by: Amitkumar This tutorial covers
Now (fairly frequently) while debugging, it seems to get into a state where it can't examine variables.