TS2688 Error: Type definition file for 'keyv' is missing

The automated code build process failed last night, even though I did not make any changes related to NPM libraries.

The error message I received was:

ERROR TS2688: Cannot find type definition file for 'keyv'.
The file is in the program because: Entry point for implicit type library 'keyv'.

After investigating, I discovered that the keyv library was missing from my packages json file. However, other packages listed in package.json were relying on it. In the package-lock.json file, @types/keyv was referenced in multiple places.

Further research led me to a line in the package-lock.json file and this link:

https://www.npmjs.com/package/@types/keyv "This is a stub types definition. keyv provides its own type definitions, so you do not need this installed."

It appears that the packages using 'keyv' were attempting to use the deprecated @types/keyv.

typescriptnpmtypesnode-modulestsconfig

Answer №1

Using the command npm install -D keyv
fixed the issue for me as well.

Answer №2

To tackle the issue, I included the keyv library in my package.json file.

Answer №3

After running npm install -D keyv, my issue was resolved as well. It's a mystery to me why it worked!

Answer №4

To resolve the issue, I fixed it by resetting the package versions: 

rm package-lock.json && rm -rf node_modules && npm i

The reason for its success remains a mystery to me. It's possible that an outdated version of "keyv" was lingering in the "package-lock.json" file.

In any case, I believe this solution is superior to installing unnecessary packages in your codebase.

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