Launcher Forgets Engine


After uninstalling and re-installing the launcher, I finally got it to work by running it as admin… I downloaded the engine last night and opened it successfully. I closed everything, the launcher, and the engine, and now when I open it, the launcher doesn’t know that there’s an engine installed. Currently it’s downloading it again, but it’s going pretty fast as if it’s simply finding the files are already there (which they are). How do I prevent the launcher from forgetting the engine again? I’ve had tons of bad luck using the engine so far and I’d like it to work smoothly!

Is it possible that I could manually install the engine by telling the launcher the file location? I’ve also noticed the logs say something about PNG files being unable to install or something… I recall something about that in another thread that I can’t find now, so if someone would link that for me if they know it…

Windows 7 64 bit.

Here are some launcher logs.

link text

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First install I think
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Second install I believe
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Finished second install and same results after a restart of launcher and engine. If I close everything and then try and open the engine again it thinks it’s uninstalled, all of this has been run as admin.

Also, launcher fails to open at all if not run as admin. And I’ve tried adding -OpenGL to the shortcut’s properties.

Looks like if I go into the program files and find the launcher binaries and run the 64 bit version the launcher opens… Without running it as admin.

Annnnddd the third install has thrown a “corrupt” error.

I’ve wrestled with this for hours, the solutions that work usually only work once or not at all. Really sad that this amazing engine isn’t going to work out for me right now.

Hi CaptainGector,

I’m sorry to hear that you are having trouble. Once you’ve installed the engine and the launcher gives you the error, could you check the install directory and verify that the engine files are showing? If you go with the default folder choice, they will be here:

C:\Program Files (x86)\Epic Games

If the installed engine does show, please see if you can run the EXE manually. This will be located here:

C:\Program Files (x86)\Epic Games\4.10\Engine\Binaries\Win64\UE4Editor.exe

Also, could you please include your DxDiag in your response?

Yes, the engine shows up where it belongs, and I was able to run the editor, thanks!

Not convenient but it works. Not sure if it will be able to open old projects, plus the launcher also open up along with the editor, and still thinks there isn’t an engine installed. Is there a config file to tell the launcher where the engine is?

What’s a “DxDiag”?

Hello again!

You can generate your DxDiag by following the steps here.

Also, can you please take a screenshot showing your launcher showing the Library section with the with the Unreal Engine tab selected ?

DxDiag: [link text][1]


Hello again!

I believe this might have to do with how the launcher was installed. Can you verify under Control Panel that your normal user account has admin access?

Hi CaptainGector,

We haven’t heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you’re still experiencing this issue, please try the suggestion that I mentioned above then post back here with the requested info.

If you need anything else, feel free to ask.

Yes I am an admin on my computer, I’ve ran the installed with admin access by right clicking it and selecting “Run as administrator” and I’ve run it normally. My system only has 4GBs of RAM, is that enough for the installation?

I thought I had been abandoned, I guess I just missed the email when you replied.