Cloudflare Developers•13mo ago

Troubleshooting Hono with Cloudflare Durable Objects Implementation Error

I'm currently working on integrating Hono with Cloudflare Durable Objects following this (url: https://github.com/honojs/examples/tree/main/durable-objects/src) example: Hono Example. However, I've run into a snag and need some help troubleshooting. My implementation, which is essentially a replica of the original example, can be found here: My Hono Implementation (url: https://github.com/bkyerv/hono-cloudfalre-do/tree/main/src ). I'm encountering the following error:

Error: 
service core:user:worker-lawyer: Uncaught TypeError: Class extends value undefined is not a constructor or null
  at index.js:1677:44 in maskDurableObjectDefinition
  at index.js:1686:16
✘ [ERROR] MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.

Error: 
service core:user:worker-lawyer: Uncaught TypeError: Class extends value undefined is not a constructor or null
  at index.js:1677:44 in maskDurableObjectDefinition
  at index.js:1686:16
✘ [ERROR] MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.

GitHub

hono-cloudfalre-do/src at main · bkyerv/hono-cloudfalre-do

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5 Replies

kian•13mo ago

You're not exporting your class from your entrypoint

bkyervOP•13mo ago

how do i do it?

kian•13mo ago

export { Counter } from './counter' in index.ts

bkyervOP•13mo ago

thank you, Kian! out of curiosity, how did you locate the issue? just reading through and looking for odd looking lines? or did you read the error message and come to some conclusions?

Cole•12mo ago

@kian Thanks for this! Solved my issue.

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Troubleshooting Hono with Cloudflare Durable Objects Implementation Error