Error "Expected a Runnable, function or object. Instead got an unsupported type" with a simple RAG Flow

[n0valis]

Describe the bug I have created a simple RAG Flow which I wanted to test with a pdf document or a webpage. Both upserts work well but in the chat I ask a question about anything I get an error message: Error: Expected a Runnable, function or object. Instead got an unsupported type. Here's the flow

Setup

• Installationnpx flowise start
• Flowise Version can't find it, the latest, installed yesterday
• OS: Windows
• Browser chrome

Additional context Error: Expected a Runnable, function or object. Instead got an unsupported type. at _coerceToRunnable (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\@langchain\core\dist\runnables\base.cjs:1772:15) at _coerceToRunnable (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\@langchain\core\dist\runnables\base.cjs:1765:30) at RunnableBinding.pipe (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\@langchain\core\dist\runnables\base.cjs:354:19) at createRetrieverChain (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise-components\dist\nodes\chains\ConversationalRetrievalQAChain\ConversationalRetrievalQAChain.js:256:53) at createChain (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise-components\dist\nodes\chains\ConversationalRetrievalQAChain\ConversationalRetrievalQAChain.js:287:28) at ConversationalRetrievalQAChain_Chains.init (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise-components\dist\nodes\chains\ConversationalRetrievalQAChain\ConversationalRetrievalQAChain.js:133:29) at buildFlow (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise\dist\utils\index.js:440:58) at process.processTicksAndRejections (node:internal/process/task_queues:95:5) at async utilBuildChatflow (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise\dist\utils\buildChatflow.js:227:36) at async createAndStreamInternalPrediction (C:\Users\smaug\AppData\Local\npm-cache\_npx\8b95a19c5c9c8708\node_modules\flowise\dist\controllers\internal-predictions\index.js:32:29)