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UE4.5.1 Local Windows Debugger launch, doesnt build Program.

I have to Build program first manually, and only after that i can press Local Windows Debugger, otherwise it is not rebuild and not launch.

100% bug.

Product Version: Not Selected
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asked Jan 07 '15 at 06:04 PM in Bug Reports

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avatar image Tim C ♦♦ STAFF Jan 13 '15 at 09:24 PM

Hi newbprofi,

I tried to reproduce the issue that you described in 4.5.1, but was unable to do so. I have some clarification questions for you.

  • When you say you have to build the "program" manually, are you referring to building a project, or the Engine itself?

  • It sounds like you are trying to run within Visual Studio's debugging environment, correct? Are you clicking the Local Windows Debugger play button in the hotbar at the top of Visual Studio? Have you tried right-clicking on the project in the Solution Explorer and selecting Debug -> Start New Instance?

  • When you click the Local Windows Debugger button, do you see a popup window from Visual Studio stating that the project is out of date and asking if you would like to build it?

  • What happens when you click the Local Windows Debugger button?


avatar image newbprofi Jan 13 '15 at 10:48 PM
  • i refferring to build whole solution, with MyProgram set to startup project. And then, automatic build i mean - Press button "Local Windows Debugger" on top-left of Visual Studio 2013. Manual build - (RMB MyProgram)->Build/Debug, so RMB is like manual for me.

  • yes. No i didnt try, but it need to use RMB, so its manual(too hard) for me.

  • no i didnt see anything, i was just getting some errors in Output window, dont remember which exactly.

  • when i was change some code in MyProgram, and try to click "Local Windows Debugger", then its trying to run newly compiled program with old MyProgram.obj or smth like that, but i really dont remember.

When i am trying to reproduce this now, i cant, and everything is compiled fine when i change code and click "Local Windows Debugger", so i think the bug is hiding (not easy to reproduce). From this moment i will try to use "Local Windows Debugger" button, and if i see this bug again i will tell u more details.

PS: sry, didnt expect that its hard to reproduce. I wasnt use straightly "Local Windows Debugger" button from that moment, until now. I used instead "RMB MyProgram->Build", and only then click "Local Windows Debugger". But now i will use straightly "Local Windows Debugger" button, if i see bug again, i will tell.

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Hi newbprofi,

I am glad to hear that this issue seems to have stopped occurring. If it pops up again, please let us know. I did want to double-check one thing, though. You mentioned that you do not see a pop-up window in Visual Studio when you click the Local Windows Debugger button. So you are not seeing this prompt at all?



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answered Jan 20 '15 at 11:50 PM

avatar image newbprofi Jan 24 '15 at 01:05 AM

yes, i didnt see this. Otherwise that would be too simple. But anyway, i am used to use RMB + Build, because now i often only compile, instead of compile+run. I tryed to use Local Windows Debugger button for recompile+run couple of times, everything seems fine.

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