TypeError: flatMap is not a function

Question

I was trying to install parcel to run my own npm package but I get the following error when starting the HTML with parcel lib:

TypeError: [(...previousDevDepRequests.entries(...))].filter(...).flatMap is not a function
    at Object.run (C:\Users\ishantr\AppData\Roaming\npm\node_modules\parcel\node_modules\@parcel\core\lib\requests\AssetRequest.js:94:122)
Copy

I am on v10.16.0, and my index template is something like this:

<img src="xxx.jpg" alt="" class="some_class_name">
<script src="./index.js"></script>
Copy

It calls the js file to run some business logic.

Answer 1

you should consider upgrading to node 14.x . it worked for me ..i was using node version 10.19.0