I have an exe that has been working but my latest builds open an error window on launch. When you click OK the front panel show a broken arrow. My environment is a Widows 10 PC developing with LV2013SP1-32. The error window is shown below with the message repeating almost 250 times. It fills my 1920x1200 monitor almost completely. There are some very old threads on this topic but they have not helped me solve this. My main.vi runs fine in LabView with no problems. I just can't get a exe build to run. This is a fairly large app with over 1200 VIs. and an event case with 25-30 events Things I have tried. Roll back source to an older version from TFS and build. No Joy Change PCs. Install LV2013 ful dev on another PC download my source from TFS and build. No Joy Try a new project from main and build. No Joy Port to LV2020. I am short toolkits that work in 2020. (G Toolkit, SSH Toolkit from LabWerx) working on getting them. Will try later. Remove sub vis from my main to try to identify the offending sub vi. (Finally ran when 90% of my code was removed) My main has many event cases that are control by button down events Data to the subvis in the event case are handled by several shift registers in the while enclosing the event structure. I removed event cases until the shift registers were no longer required. Then the exe would run. Yippee. Since the shift registers were un initiated I initiated them with all event cases and rebult. No Joy. I made sure all the output tunnels on the event cases were wired and turned off "used default if unwired" I am wondering if I should learn how to use the debugger and see if this yields any usefully information. Any pointers will be greatly appreciated. I've been beating on this for a week and I'm out of ideas. Norm

LabVIEW

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I have upgraded and built an exe for LabVIEW 2019. I still get the message but only 6 times now.

Norm

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