ERROR: Could not find plugin "proposal-private-methods". Ensure there is an entry in ./available-plugins.js for it

Question

When trying to run yarn dev and I am getting the following error:

Error: [BABEL] C:\Users\User\OtherFolders\src\index.js: Could not find plugin "proposal-private-methods". Ensure there is an entry in ./available-plugins.js for it.

I have "@babel/plugin-proposal-private-methods": "7.8.3" as a dependency on my package.json file. Also, the @babel/plugin-proposal-private-methods folder is present in the node_modules folder.

I had tried the following to no luck:

• Adding a resolution: "@babel/compat-data": "7.10.1" to the package file I remove the node_module folder, yarn-lock, and package-lock files before attempting to run yarn install. yarn install runs without issues
• I also try $ npm i @babel/plugin-proposal-private-methods

Any ideas on what the error could be or potential solutions? Thanks in advance for any help!

Answer 1

Kudos to the Babel Project GitHub team to help to solve the issue. The issue solution is to change the version of @babel/preset-env from 7.8.6 to 7.8.7 or higher. The response to this ticket in GitHub is in this link.