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Cant open 4.19.2 Unreal Engine

I installed the 4.19.2 but i cant open it. Please fix this epic. I did not update my OS, is that the problem?

Product Version: UE 4.19
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asked May 08 '18 at 09:22 AM in Installation & Setup

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avatar image MNaomi May 22 '18 at 11:40 AM

I'm having the same problem. It just says "busy" for a second and then it goes back to the launch button. Sometimes after pressing Launch the EG window disappears, the app doesn't quit, so if I press the app's icon it just brings me back to where I was, the Launch button... I also updated my OS to 10.11.06 before installing UE, so I don't think that's the problem

avatar image EyeofChaos May 22 '18 at 12:41 PM

Same problem with Windows 4.18.3. Just goes back to the launch button.

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Did you have the option checked to start the last open project automatically? Maybe after upgrading, you need to upgrade the project before launching?

If you haven't done so already, I would start with a complete re-install.

If you are comfortable enough

I would perform a re-install as follows - only if you have proper up-to-date backups of everything.

Proceed at your own risk.

Remove UE4 - Reboot - Then remove any instances lying around inside your user profile for example, maybe any folders named 'Epic' or 'UnrealEngine'.

Check these areas:

I'd also clear the entire user temp folder in:
You will likely not be able to remove everything, as some items may be loaded into memory - just 'Skip' any of those items.

Along with running the windows 'disk cleanup' utility and/or a program called 'ccleaner'.

I believe UE4 uses the .NET framework 3.5, so maybe a re-install of that as well, but I'm not certain on this.

Make sure to reboot after you are finished with all other tasks before re-installing. You want to be in a fresh rebooted state once ready for the re-install.

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answered May 22 '18 at 02:22 PM

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