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Bug: UProject File Crash on Opening.

  1. Start with the UE4 4.3 Source, in Visual Studio, build using Debug Editor Congfiguration

  2. Set Engine>UE4 as Start Project and then start in the debugger using F5 (Debug > Start Debugging ).

  3. Switch to the Unreal Project Browser and then the New Project Tab

  4. Select the Blank Project, then click Create Project Button. I've had it fail both with and without start content.

  5. Wait for the editor to open. When it is open, close it.

  6. Navigate to the folder where you saved the project and double click on the uproject file.

  7. You will get multiple dialogs like those shown in the image below, reporting crashes with the stack trace. Note the text in the dialogs is not copyable, it would be nice if it was.

I guess this is because I'm creating the proejct with the debug source 4.3 version, but when I double click it is launching the installed 4.3 release version and then getting confused.

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asked Jul 29 '14 at 12:44 PM in Bug Reports

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Hey jCoder -

I am not able to get any errors following your steps, but I would imagine that you are correct that it is caused by the uproject file opening in the wrong version of 4.3.

Can you try uninstalling the Launcher (pre-compiled) version and see if you can reproduce this error as you have described it above?

Thank You

Eric Ketchum

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answered Jul 29 '14 at 08:39 PM

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Lovecraft_K ♦♦ STAFF
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avatar image jCoder Jul 30 '14 at 02:06 PM

Eric, when I uninstall the launcher, WIndows looses the file association and can't find a application to launch. I pointed it at the debug build of the editor in my UE4 source/build folder and it launched fine.

avatar image Lovecraft_K ♦♦ STAFF Jul 30 '14 at 06:25 PM

Hey jCoder -

You can associate the source version with this file ...\Engine\Binaries\Win64\UnrealVersionSelector-Win64-Shipping.exe

This should associate your project files correctly.

Thank You

Eric Ketchum

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