How do I fix a missing attributes problem in my sentiment analysis process?

ElvisArElvisAr Member Posts: 2 Newbie
edited June 2019 in Help
Hello community, I'm new to Rapid Miner, I build a process based on the community examples, it was working fine until yesterday them I started getting these errors with my attributes. You can find the code and the pics in the attached files.

OS: Windows 10 version 1803
Rapidminer version: 9.2.001
Executing in: Rapidminer Studio

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