codesandbox - Cannot find module PACKAGE or its corresponding type declarations

Question

I built and released a npm package called schemez . On my local system via vscode, it works great with no errors and plenty of Typescript support. On codesandbox, its erroring out with Cannot find module 'schemez' or its corresponding type declarations.ts(2307) even though the code is compiling.

Sample - https://codesandbox.io/s/fluent-json-schema-vs-schemez-vs-typebox-645s2j

Why is this occurring?

Answer 1

For me, this issue is popping up. When I open console it seems to be a CORS issue with the specific package. It might be a temporary problem, because I can not find many issues regarding this in 2022, although there is a unanswered one here

https://github.com/codesandbox/codesandbox-client/issues/6834