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launch failed error

after installing new version 4.10.3 can't enter launch mode at any of my projects.even ue4 blank projects without content. after clicking on launch button "Deploying Executable and Assets..." window stuck for couple of minutes then "Launch failed!" window appears. printscreens attached.help please!alt text

Product Version: UE 4.10
deploying.jpg (345.5 kB)
launch failed.jpg (503.2 kB)
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asked Feb 18 '16 at 12:28 PM in Using UE4

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avatar image Manoroc Mar 09 '16 at 09:59 PM

I have the same error. Also interesting.

avatar image Iamcool001 Mar 09 '16 at 11:46 PM

Same problem here :\ I have an oculus rift but it still happens when i unplug it.

btw im new to UE4

EDIT: I just tried on 4.9.2 and works fine, with and without the oculus. maybe a bug?

avatar image AllJonasNeeds Apr 04 '16 at 03:21 PM

I am using 4.11 and I also cannot launch a blank blueprint project. I do have a HTC Vive Pre plugged in. I tried closing SteamVR, unplugging the power cord of the Vive and reopening the project, but the blank project still won't launch.

avatar image Umbriferous Jun 10 '16 at 11:02 AM

Same here with 4.12, no VR

avatar image Max974 Jun 15 '16 at 01:26 PM

Hello, same problem here 4.12.2 and no oculus attached, blank project.

avatar image Khanzada Nov 25 '17 at 01:48 PM

4.18.1and I cant start a world!!

avatar image GreatWhiteWolf_ Dec 02 '18 at 06:41 AM

the same proplem

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