npm run config fails reproducible (locally + Cloud9) with default settings

[markusz]

Running npm run config fails reproducible when following the deploy instructions.

I get the following error:

Could not complete the operation.
Cannot set properties of undefined (setting 'default')

I verified npm run config failing in different environments and configurations

• node v18 & v20
• Cloud9 & locally
• Default config values vs custom config

Steps to reproduce:

1. Clone the repository and checkout main. This will point to v3.1.3 of the aws-genai-llm-chatbot
2. Follow the instructions for Cloud9 / local deployment
3. Use default values for all inputs

[markusz]

v4.0.14 works, but main still points to v3.1.3, so this likely affects everyone following the deploy instructions in the docs

[markusz]

Workaround

• Download v4.0.14 or higher manually from here
• Unzip
• Continue with Step 2 of the deployment

[charles-marion]

Added a fix in #594

[markusz]

That was fast. Thanks!

[yoavchaws]

Well, when I run "npm run config" in Cloud9 in eu-central-1, selecting RAG with Knowledge base, it exits without asking me to save a config file and no config.json is created. Same with "npm run create". I suspect it is related to the change done to config.ts for this fix.

[charles-marion]

@yoavchaws , I added a fix. Sorry about that.

[yoavchaws]

Thanks @charles-marion. The fix works fine. However, when I create a bedrock based RAG configuration, it does not ask me for the embedding model (embeddingModels[]) to use. As a result, the cdk bootstrap operation falls later with "no embedding model set". A work around is to change one of the embeddingModels[].default to true.

[charles-marion]

Added a fix in the PR https://github.com/aws-samples/aws-genai-llm-chatbot/pull/598 . Please use the work around listed above until merged.

[charles-marion]

Thank you for reporting the issue @yoavchaws , the change it merged.