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Niagara Emitter doesn't play

Hi, While following this tutorial: https://www.youtube.com/watch?v=KFtP0qeDL_Q I get to the stage where i'm adding the particle spawn module that sets a vector variable with a random tri coordinate of a static mesh sample. As soon as I add the module, my emitter is unable to play. If i remove the module from my emitter it still can't play, and any Niagara systems I have with the emitter in them also won't play, removing the emitter from the system doesn't fix it. Why?


Product Version: UE 4.20
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asked Oct 23 '18 at 09:10 PM in Rendering

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avatar image stblurbles Oct 23 '18 at 09:10 PM

Also, following through with the entire tutorial and setting everything up correctly doesn't fix the issue

avatar image stblurbles Oct 24 '18 at 04:16 AM

Seems that force deleting the module works, I found this in the output log: LogNiagara: StaticMesh data interface has no valid mesh. Failed InitPerInstanceData - NiagaraDataInterfaceStaticMesh /Engine/Transient.NiagaraComponent_1:NiagaraDataInterfaceStaticMesh_0 LogNiagara: Error: Error initializing data interface "/Engine/Transient.NiagaraComponent_1:NiagaraDataInterfaceStaticMesh_0" for system. 1887259520 | NiagaraSystem_0 LogNiagara: Error: Error initializing data interfaces. Completing system. 1887259520 | NiagaraSystem_0

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I just came across this problem too. If anyone else gets it, try putting your emitter into a system first, and then trying the mesh/skeletal mesh stuff from within the system. worked for me!

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answered May 24 '19 at 02:01 AM

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