Macro Makes Build Fail

Development Platform & Builds
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1

So it appears that my simple macro makes the game unable to build:

LogBlueprint:Error: [compiler h_Spawner] Error The type of  Target Array  is undetermined.  Connect something to  Get Random Array Element  to imply a specific type.
[2015.11.21-13.25.14:261][  0]LogInit:Display: LogBlueprint:Error: [compiler h_Spawner] Error The type of  Item  is undetermined.  Connect something to  Get Random Array Element  to imply a specific type.

http://puu.sh/ltooh/75ffcf15c4.png

In order to get around it, I just had to take the contents of the macro and put it in my blueprint. But that sort of defeats the purpose as I fetch a random element from an array in different places which would make a macro ideal.

2

I’ve had the exact same issue while using the same macro in v4.10. It’s causing the packaging process to fail. And the error message appears even if all the array connections are made correctly and working both in PIE and standalone.

3

Hey,

Please attach your packaging as a .txt file to your next reply. With that being said, would you mind either a.) including your blueprint example or b.) providing the full blueprint example. I’d also like to see if you have any compiling or saving errors as well.

Looking forward to hearing back from you, thanks!

4

Hi , I’ve attached both the packaging as well as the link to a blueprint example project below:

[PackageLog][1]

link: [BugRepro][2]

68409-package_failreport.txt (388 KB)
[2]: https://www…com/s/u7yns5igh0ev3mp/MacroBugTest.zip?dl=0

5

Hey Vipar and Stormrage256,

Thank you for your help with finding this bug. I have submitted a . You can reference the bug as UE-23933. Please feel free to check in on this bug in the future.