Cannot use import statement outside a module

Cannot use import statement outside a module #

I was getting this error: SyntaxError: Cannot use import statement outside a module

Working on a project with Vue + Jest + Typescript.

It seems the cause was a missing package, most likely one of these:

@babel/plugin-transform-modules-commonjs
@babel/preset-typescript
@types/jest
@vue/cli-plugin-typescript

Updating those fixed the problem.