Visual Studio Project Only Rebuild Rebuilds everything.
Yesterday I posted a tweet that I tried to rebuild my project only in visual studio 2013 community, but it rebuild the entire engine with it. Which is a bit annoying, since you have to wait for some time. I would guess that this is a visual studio issue, but the official UnrealEngine account replied with if I would like to post it on answerhub.
I have a custom version of 4.9 (I didn't modify much, so that shouldn't be the issue). I did not change the engine code before pressing "Rebuild only MyProject".
asked Dec 20 '15 at 03:12 PM in Bug Reports
I was able to get some additional information about what you described. It appears that the Unreal Build Tool does not respect the Build Only ProjectName command, and treats it as a normal rebuild. I am not sure if this functionality in Visual Studio is something we will be able to support given how tightly intertwined project, Engine, and UBT code is. For now, if you want to rebuild your project only, you will probably just want to follow the steps that I outlined in my comment above.
answered Dec 23 '15 at 10:40 PM
Tim C ♦♦ STAFF
answered Sep 16 '17 at 02:27 PM
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