Chatbot without API

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Screenshot 2024-08-28 141019
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My task is to create aChatbot in KNIMe without API with pdf. Example worflow from Professor https://hub.knime.com/-/spaces/-/~RgLTaML-8RjQVBfi/current-state/
I excluded the part in front of the GPT4All Embeddings Connector Node (and later the Local GPT4All Chat Model Connector Node) . I almost finished the workflow however there is some error, I have attached my workflow photos for reference.

Since I am new to KNIME, I need help to solve this error. If you need further details about what I did in my workflow, I would be sharing.

WhatsApp Image 2024-08-28 at 14.17.20_d48783b6
WhatsApp Image 2024-08-28 at 14.17.20_d48783b61600×1200 236 KB

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@Jaya_Lekshmi welcome to the KNIME forum. Two things to note:

It might be best to download the whole workflow group so you will have the sub-folder structure also.

If you just want a ChatApp without the option to use files (with a vector store) you could try this one which will just have the chat:

You might also benefit from this article explaining what you see:

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