typescript/raven.d.ts, at line 205, is throwing an error stating that it cannot recognize the name 'unknown' when attempting to install npm in an Ionic

During my work on an ionic project, I encountered this error while attempting to run npm install.

https://i.sstatic.net/yHc04.png

You can access the package.json file through this link:

Answer №1

If you're facing issues, one possible solution is to delete the node_modules/ directory and then re-install all dependencies as listed in the package.json file.

rm -rf node_modules/
npm install

Answer №2

The 'unknown' name cannot be found
error is popping up due to the usage of Typescript 2 while raven.js requires Typescript 3 type 'unknown'

You have two options: either update your project to utilize Typescript 3 or revert back raven.js to a version compatible with Typescript 2.

Answer №3

To fix the problem, I replaced the raven.js folder in my local node-modules with an older version and then ran ng build. This resolved the issue for me.

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