Getting Error in Genkit Ui: Waiting to connect to Genkit runtime...

[akshatbindal]

Description:

When trying to run npm run dev:genkit to launch the genkit ui, getting the following error in the UI and none of the prompts, models and flows shows up. Tried the same with npm run dev , gives the same error.

Error:

Waiting to connect to Genkit runtime...
Your application must be running in dev mode to access all of the features of the Developer UI, either using genkit start or by setting the environment variable GENKIT_ENV=dev.
Be sure to check the logs for any startup errors.

Versions Used:

• Used the code from main branch as of 15th June 2025.
• Nodejs Version: 22.13.0
• Genkit Version: 1.12.0

[Teejay128]

I am getting the same error as well:

Error:

Versions:

• Code from main branch as of 25th june 2025
• Nodejs version: v23.11.0
• Genkit version: 1.12.0

[alexastrum]

I am getting the same error as well:

Error:

Versions:

• Code from main branch as of 25th june 2025
• Nodejs version: v23.11.0
• Genkit version: 1.12.0

Please use nodejs 20, 22, or 24.

Description:

When trying to run npm run dev:genkit to launch the genkit ui, getting the following error in the UI and none of the prompts, models and flows shows up. Tried the same with npm run dev , gives the same error.

Error:

Waiting to connect to Genkit runtime...
Your application must be running in dev mode to access all of the features of the Developer UI, either using genkit start or by setting the environment variable GENKIT_ENV=dev.
Be sure to check the logs for any startup errors.

Versions Used:

• Used the code from main branch as of 15th June 2025.
• Nodejs Version: 22.13.0
• Genkit Version: 1.12.0

This is a known issue, if running npm run dev, but the connection should work as soon as you send the first request in the nextjs app.

Please double-check the port number(s) shown in the terminal, since should you might have multiple instances of genkit UI running (and it might just be that the one you're looking at is linked with the Next.js app).

If this is not the case, it would help me to see a screencast (showing the command you run, the terminal, and the browser page/url with the above error).

I know this is not ideal, so we're looking into having Next.js auto-connect to Genkit upon start (and not after you run the first generate call).

[Teejay128]

GenkitError: NOT_FOUND: Schema 'string' not found

I tried making a request in the nextjs app in the "Plan my dream trip with ai" part. But I am now getting a genkit error that says NOT_FOUND: schema 'string' not found

The error originates from the src/lib/genkit/itineraryFlow.ts file, specifically in line 56:20:

I already upgraded my npm version to v24.3.0 and the only changes I have made to the codebase is inputing my firebase-config variables.

[akshatbindal]

@alexastrum Please find attached the screencast of the terminal and genkit ui.

https://drive.google.com/file/d/1qcbJLOMVZ8NyJOko04Y861XJTSgTMeTF/view?usp=sharing

[ravisha7feb]

Same issue:

Have tried multiple ways to fix it. Added GEMINI_API_KEY, restarted server, changed genkit versions. Nothing is helping. Even after adding GEMINI_API_KEY it says its not set. And the above error anyways persists.