obsidian-sample-plugin | This is a sample plugin for Obsidian ( https

You can find a working example of what you're going for here. I'll go through some of the changes that needed to be made to your code one-by-one in this reply.

Can't resolve 'obsidian' in 'path\kotlin' occurs because the obsidian-api package is not a standalone library. Instead, it only consist of a obsidian.d.ts file, which is a TypeScript declaration file. Similar to a header file in other languages, this header file does not provide any implementations, but only the signatures and types for the library – meaning Kotlin/JS' webpack (or any JavaScript tooling, for that matter) won't be able to resolve the actual implementations. This is expected, and can be addressed by declaring the module as external. To do so in Kotlin/JS, create a directory called webpack.config.d, and add a file 01.externals.js with the following content: