Verify that you have the latest version of Node.js installed (or, at least 13.2.0+). Then do one of the following, as described in the documentation:
Option 1
In the nearest parent package.json
file, add the top-level "type"
field with a value of "module"
. This will ensure that all .js
and .mjs
files are interpreted as ES modules. You can interpret individual files as CommonJS by using the .cjs
extension.
// package.json { "type": "module" }
Option 2
Explicitly name files with the .mjs
extension. All other files, such as .js
will be interpreted as CommonJS, which is the default if type
is not defined in package.json
.
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