The Following Module was built either with optimizations enabled or without debug information

Question

I cannot get rid of this in my VS 2008 web project when debugging. I\'ve checked that it\'s in debug mode on the non-web project in question and it\'s in Active(Debug). De

Answer 1

Tools > options > Debugging > Symbols > Specify excluded modules look that if the dll or the exe in the excluded modules list

Answer 2

If you are publishing to IIS and not using built in web server -or IIS express- make sure that your publish profile settings is in debug mode. In vs 11 by default it's in release mode.

Answer 3

For me, Checking the "Optimize code" box in the project properties, saving, unchecking it, then resaving did it for me.

Disabling "Enable Just My Code" also worked, but that was more of a work-around than a fix as I didn't want that setting.

Answer 4

I have had same problem, but with different cause and solution. The window was the same as that shown by Gustavo (above) but the path was in: "\users\zzz\AppSettings..." (where zzz is windows username)

I had an Excel addin - I was testing the install of the addin, so I had a copy installed through VS install function. VS was obviously trying to debug both the installed copy and the copy I had just launched, and could not find debug symbols on the installed copy.

None of the above solutions worked (without side affects),

SOLUTION: uninstalling the addin, and manually deleting the files in App Settings worked.

Answer 5

resolved. Deleted all occurences (all projects) of the dll in question.

Answer 6

Case : testing assembly with Console project in SharePoint development - if you're doing SharePoint development and seeing this alert in VS, make sure you deploy your SP assembly to the GAC before testing your console app IF your core SP project has methods you need to call in your console test app.