I am very new to KNIME and am currently encountering the following error, which I do not know how to solve:
While up to the ARIMA Learner everything works fine, I get no possibility to connect the ARIMA Learner with the ARIMA Predictor (blue connectors).
Can you please help me with this error? What exactly am I doing wrong and how can I correct it?
Attached is a picture of my architecture.
Thank you in advance and many greetings
Florian
Hi @FlorianKi and welcome to the forum.
Based on your screenshot I think you need to be using the ARIMA Predictor component (as opposed to the regular node), since you are already using the ARIMA Learner component upstream.
If you’re new I can definitely see how this would be confusing since the port colors are very similar. If you’re not familiar with the difference between components and regular nodes, you can check out our documentation or our verified components page for more info:
Or just feel free to ask here any questions you might have. 
