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Cook failure (BlueprintNativeCodeGen\Private\BlueprintNativeCodeGenModule.cpp)

We're having custom plugin in our project ( https://forums.unrealengine.com/showthread.php?85022-Blueprint-C-Advanced-Templates-Tools-amp-Plugins ) After fixing some errors with code, we're still getting "Unknown cook failure" but this time only with this line: Assertion failed: bSuccess [File:D:\Build\++UE4+Release-4.12+Compile\Sync\Engine\Source\Developer\BlueprintNativeCodeGen\Private\BlueprintNativeCodeGenModule.cpp] [Line: 390]

I'll upload the whole log. Anyone got any tips on how to proceed from this point? Already tried to just erase this line, still won't work.

I know there's plenty of warning in log, but this project were packaging successfully before implementing this plugin.

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asked Sep 03 '16 at 09:16 PM in Packaging & Deployment

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Hello Ysseret,

There seem to be a couple problems here. First, there's this message:

LogBlueprint:Error: Compiler Error The type of Object is undetermined. Connect something to Cast To CH_spiders to imply a specific type. from Source: /Game/Blueprints/walls.walls

This is indicating a blueprint issue where there is an object whose type isn't being defined when it needs to be.

The other is the assertion message you mentioned. Seeing as it's mentioning BlueprintNativeCodeGenModule.cpp, I believe this means that you have Nativize Blueprint Assets enabled. There is currently a bug report in, which you can find here, about packaging failing if this option is enabled while the project contains 3rd party plugins, so you'll need to disable this option.

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answered Sep 06 '16 at 05:55 PM

avatar image Ysseret Sep 06 '16 at 06:13 PM

Thanks, I'll try that.

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