This experimental syntax requires enabling the parser plugin: 'classPrivateMethods' - eslint

Question

I am getting this error. There are a few similar cases that I have seen in Stackoverflow, but I checked and tried everything and the solutions didn't work.
The project itself works, it is just when I try to use pkg, I am getting the error:
> pkg src/index.js --target=latest-win-x64 --out-path ./dist --config pkg.json
:
:
> Error! This experimental syntax requires enabling the parser plugin: 'classPrivateMethods' (441:2)
E:\Proj\node_modules\node-webpmux\webp.js
All solutions basically say to add plugin-proposal-class-properties and plugin-proposal-private-methods, and specify them in the project json files (eslint, babel, package). I did that, and it doesn't help.
package.json:
"devDependencies": {
"#babel/core": "^7.14.8",
"#babel/eslint-parser": "^7.14.7",
"#babel/plugin-proposal-class-properties": "^7.14.5",
"#babel/plugin-proposal-private-methods": "^7.14.5",
"#babel/preset-env": "^7.14.8",
"#babel/preset-react": "^7.14.5",
"eslint": "^7.31.0"
},
.eslintrc.json:
{
"extends": "eslint:recommended",
"parser": "#babel/eslint-parser",
"parserOptions": {
"ecmaVersion": 12,
"sourceType": "module",
"babelOptions": {
"plugins": ["#babel/plugin-proposal-class-properties",
"#babel/plugin-proposal-private-methods"]
}
},
"plugins": [
"classPrivateMethods",
"classPrivateProperties",
"babel"
],
"env": {
"node": true
},
"rules": {
"no-console": 0,
"no-unused-vars": 1,
"babel/semi": 1
}
}
.babelrc:
{
"presets": [
"#babel/preset-env",
"#babel/preset-react"
],
"plugins": [
[
"#babel/plugin-proposal-class-properties"
]
]
}
.pkg.json:
{
"name": "WA chatbot",
"version": "1.0.0",
"pkg": {
"assets": "./assets"
}
}
node version: v14.15.3
yarn: v1.22.10
Is there a solution for this?