ERR_PACKAGE_PATH_NOT_EXPORTED

[Semeon]

When importing and using @middy/core in my Node.js AWS Lambda application, I am running into the following error:

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in "<path>/node_modules/@middy/core/package.json"

This prevents being able to import and initialize middy properly.
Steps to Reproduce

1. Create Node.js handler that imports @middy/core
2. Initialize middy middleware with middy()
3. Build and run application
4. Notice error when middy is imported

Expected behaviour
I want the middy to work as I expected it to work on the doc like it did when I was using middy v4

• Node.js: 18
• Middy: 5.0

Additional context
Add any other context about the problem here.

[will Farrell]

Are you trying to use v5 with CommonJS?

https://middy.js.org/docs/upgrade/4-5/#why-we-deprecated-cjs

[Semeon]

Thank you will! The deprecation of the CommonJs was the problem.