Commands not found error after on hooks(onBuildStart and onBuildEnd)

[bracano45]

This is how my Webpack config files looks like.

`const path = require('path');
const webpack = require('webpack');
const nodeExternals = require('webpack-node-externals');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
const NodemonPlugin = require('nodemon-webpack-plugin');
const WebpackShellPlugin = require('webpack-shell-plugin');

const ENV = process.env.NODE_ENV.trim();

const isDev = ENV !== 'production';
const isProd = ENV === 'production';

function setDevTool() {
if (isDev) {
return 'inline-source-map';
} else if (isProd) {
return 'source-map';
} else {
return 'eval-source-map';
}
}

const browserConfig = {
mode: ENV,
entry: './src/client/index.js',
output: {
path: path.resolve(__dirname, 'public'),
filename: 'bundle.js',
publicPath: '/'
},
devtool: setDevTool(),
module: {
rules: [
{
test: /.(js)$/,
use: 'babel-loader'
}
]
},
plugins: [
new webpack.DefinePlugin({
isBrowser: "true"
})
]
}

const serverConfig = {
mode: ENV,
entry: './src/server/index.js',
target: 'node',
externals: [nodeExternals()],
output: {
path: __dirname,
filename: 'server.js',
publicPath: '/'
},
devtool: setDevTool(),
module: {
rules: [
{
test: /.(js)$/,
use: 'babel-loader'
}
]
},
plugins: [
new webpack.DefinePlugin({
isBrowser: "false"
})
]
}

if (isDev) {
serverConfig.plugins.push(
new NodemonPlugin()
);
}

if (isProd) {
browserConfig.plugins.push(
new UglifyJSPlugin({
sourceMap: true
})
);
serverConfig.plugins.push(
new UglifyJSPlugin({
sourceMap: true
}),
new WebpackShellPlugin({
onBuildStart: ['echo "Production Build Start."'],
onBuildEnd: ['node server.js']
})
);
}

module.exports = [browserConfig, serverConfig];
`

When I run 'NODE_ENV=production webpack -w', it returns error after webpack build.
Error: Command failed: node server.js

Please give me an idea why this error occurs if anybody knows why.
Thank you.

[mikeerickson]

Hard to decipher on phone as code is not properly commented, but it looks like you are not pushing the plugin call onto your desired plugin array. Near end of config, you can push to browser or server plugin (see previous code) but not for the WebpackShellPlugin