Invalid configuration object: webpack.server.js - webpack-dev-server

Question

I am using this webpack file and am getting an error.
This is the webpack file:
const path = require('path');
module.exports = {
target: 'node',
entry: './src/index.js',
output: {
filename: 'bundle.js',
path: path.resolve(__dirname, 'build')
},
module: {
rules: [
{
test: /\.js?$/,
loader: 'babel-loader',
exclude: /node_modules/,
options: {
presets: [
'react',
'stage-0',
['env', { targets: { browsers: ['last 2 versions']}}]
]
}
}
]
}
}
this is the error message:
Invalid configuration object. Webpack has been initialised using a
configuration object that does not match the API schema.
- configuration.context: The provided value
"C:\\Users\\}\\Desktop\\Node\\HelloWorld!\\new" contains exclamation mark
(!) which is not allowed because it's reserved for loader syntax.
-> The base directory (absolute path!) for resolving the `entry` option. If
`output.pathinfo` is set, the included pathinfo is shortened to this
directory.
- configuration.output.path: The provided value
"C:\\Users\\}\\Desktop\\Node\\HelloWorld!\\new\\build" contains
exclamation mark (!) which is not allowed because it's reserved for loader
syntax.
-> The output directory as **absolute path** (required).
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! new#1.0.0 dev:build:server: `webpack --config
webpack.server.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the new#1.0.0 dev:build:server script.
npm ERR! This is probably not a problem with npm. There is likely
additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\}\AppData\Roaming\npm-cache\_logs\2019-01-
08T16_11_48_069Z-debug.log

Answer 1

Had the same error. The problem seems to be in the path of your folder. It must not contain an exclamation mark(!).
Change folder 'HelloWorld!' to just 'HelloWorld' without the exclamation mark.
Hope this solves the problem.

Answer 2

just remove all !(exclamation marks) from your Project's Directory path: like from "C:\Users\}\Desktop\Node\HelloWorld!\new" to this "C:\Users\}\Desktop\Node\HelloWorld\new"