Fixed

The issue is caused due to the library being linked into the example project for development purposes. The manual suggests disabling resolve.symlinks, which fixed the issue. See commit

buggy-vue-lib

Reproduction of an issue when using a built Vue library

1. Project setup

/tmp/buggy-vue-lib $ yarn install

2. Compile lib for production

/tmp/buggy-vue-lib $ yarn build

Creates dist/buggyvuelib.umd.js

3. Go to example project and install dependencies

/tmp/buggy-vue-lib $ cd example && yarn install

4. Try to serve or build the example project until success

/tmp/buggy-vue-lib/example $ yarn serve

or

/tmp/buggy-vue-lib/example $ yarn build

The first and sometimes second run will cause an error and fail. The project will compile and run successfully after a few retries. In case of yarn serve, the failed build has to be exited with ^C before trying again.