I am using Labwindows 2013 SP1 on Windows 7 This morning I made some code changes to my project when I clicked on the "Debug Project" Icon, the project build succeeded and then Labwindows just hangs up, saying "Not Responding". I killed the project and relaunched labwindows and tried again and it does the same thing. I backed off all changes I did today to what it was yesterday when I did not have this problem and tried again and it is still hanging with "not responding". I went to labwindows 2013 about 4 months ago and I have never had this problem until today and now it wont go away. I am completely at a standstill. Can anyone help me fix this problem? Thanks John W.

Wow, I went into the .cws file and there were over 2000 watch expressions! I deleted them like you said and now the project builds and launches fine. Not quite sure how I got that many watch expressions but I will be more careful in the future. Thank you very much for your help! John W.

Hi, John. The log you sent in seems to indicate you have over 750 watch expressions in your current workspace. This hang you are experiencing is likely a result of LabWindows/CVI attempting to update all of those watch expressions. I reproduced a considerable hang by adding only 700 watch expressions, all for a single int value in my application. To fix this issue, you can remove the watch expressions. If you cannot access them interactively from the LabWindows/CVI environment, you can delete them from the bottom of your CWS file. You can do this in a text editor. Let me know if this works for you. Thanks,

LabWindows/CVI

labwindows 2013 not responding

Solved!

Hi, John

This might be related to a bug that was reported (Bug ID: 472358), where watch expressions are duplicated if you terminate execution while the Watch window is closed. The work around is to either manually delete watch expressions or make sure the Watch window is open when you terminate execution. I have added this case to the bug report to give it higher priority for our next release.

Thanks,

Daniel Dorroh
National Instruments