When working with Svelte and PopperJs, you may encounter the error: Cannot use import statement outside a module
. This issue arises because PopperJs uses ES modules, and the environment might not correctly identify the module type. This post provides a simple fix for this error.
The Issue
The error usually occurs when trying to import PopperJs in a Svelte project. The root cause is that the Node.js environment doesn't recognize the ES module syntax due to the missing type: "module"
in the package.json
of the PopperJs package.
The Solution
To resolve this, you need to modify the package.json
file in the PopperJs package. Follow these steps:
Navigate to the PopperJs Core Directory: Go to the
node_modules/@popperjs/core
directory in your project.Edit the
package.json
File: Open thepackage.json
file and locate the JSON object.Add the
type
Field: Add"type": "module"
to the JSON object. It should look something like this:jsonCopy code{ "name": "@popperjs/core", "version": "2.x.x", "main": "lib/index.js", "type": "module" // other configurations... }
Save the File: Save the changes and restart your development server.
Conclusion
By adding "type": "module"
to the package.json
file, you instruct the Node.js environment to treat the PopperJs code as an ES module. This simple fix should resolve the import error and allow you to continue developing your Svelte project without any issues.
Feel free to share this solution with anyone facing the same problem, and happy coding!
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