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Hello,

 

 

I am running a workspace, and have created a custom transformer similar to https://knowledge.safe.com/articles/Samples_and_Demos/Looping-with-Blocking-Transformers

 

 

However, there is an error that comes up: Custom transformer 'JoinLoop' does not have a port named '' which is suitable for parameter 'LOOPBACK_INPUT_TAG'

 

 

My parameters are Elevation and _iteration_count... I cannot figure out the Loopback issue.
depends on what you made, can't directly answer.

 

Show us the custom, with summary annotations.

 

 

 

 

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