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Can't link websockets_static.lib

When trying to compile UE4 from master (2014-09-02) with emscripten, I get an error that the websockets_static.lib file was not found during the linking step.

However the file is already located in the WebSockets module here: UnrealEngine\Engine\Source\ThirdParty\WebSockets\libwebsockets\lib\x64\2013\websockets_static.lib

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asked Sep 03 '14 at 09:18 PM in C++ Programming

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avatar image [Ankitkk] STAFF Sep 05 '14 at 10:22 PM

I would suggest to upgrade to 2013, FWIW - my setup is 2012 professional and 2013 express. I generate 2012 project file s and let the UBT actually invoke 2013. Your mileage may vary.

avatar image smilingrob Sep 06 '14 at 12:15 AM

The VS 2013 installer wouldn't work on my machine because I don't have Windows 8+

avatar image [Ankitkk] STAFF Sep 06 '14 at 12:25 AM

I think you might trying to install the one which does win 8 ui. the basic desktop edition just needs Win 7 + SPI1

avatar image smilingrob Sep 06 '14 at 01:04 AM

Thanks! I just installed it and found out Visual Assist (VAX) doesn't work with express. Anyway, why do you think 2013 is better than 2012? Just to avoid these issues?

avatar image [Ankitkk] STAFF Sep 06 '14 at 02:06 AM

yeah, express doesn't support plugin. VAX is the reason i use 2012 IDE for which I have a pro license. But still use 2013 as the compiler from express.

Do you have any local changes ( in UBT? UEBuildWindows.cs ? ) to force 2012 ? revert those. and then generate project files using "GenerateProjectFiles.bat -2012". This will generate a UE4.sln file which opens in 2012. all build/clean commands go though UBT batchfies so it will invoke the right compiler.

This setup SHOULD work with latest master, if it doesn't it's a bug.

if you are dealing with UE codebase, my best guess is to avoid 2012. and move on to 2013.

That being said - mea culpa - websockets_lib not being there for 2012 is my fault and I will update it as soon I have some time.


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The problem is that the WebSockets.Build.cs assumes that only VS2013 can build the libraries. And I am using Windows 7 and VS2012.

I resolved the issue by copying the contents of the 2013 folder into a new 2012 folder.


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answered Sep 03 '14 at 09:19 PM

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