As a way to make a project of nuxt, this exception occurred. Module build failed: Error: Plugin/ prefiles are not allowed to export objects, only functions : make of the following figure:

Ii. Problem Analysis and Solution: Babel version conflict, Babel dependency package is not compatible, package.json dependency package contains both Babel 7.0 version and Babel 6.0 version, the two versions are obviously incompatible, We can upgrade to Babel 7.0 version, through NPM install [email protected] command all upgrade to Babel 7.0 version, so the conflict problem of the versions can be solved.