The console outputs Ignored an update to unaccepted module error, how to fix it?

log.js:25 Ignored an update to unaccepted module ./src/print.js -> 1
log.js:25 [HMR] The following modules couldn't be hot updated: (They would need a full reload!)
log.js:25 [HMR]  - ./src/print.js

the whole console message is:

log.js:23 [HMR] Waiting for update signal from WDS...
log.js:23 [HMR] Waiting for update signal from WDS...
client?cd17:64 [WDS] Hot Module Replacement enabled.
client?cd17:64 [WDS] Hot Module Replacement enabled.
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:193 [WDS] App hot update...
log.js:23 [HMR] Checking for updates on the server...
client?cd17:193 [WDS] App hot update...
log.js:23 [HMR] Checking for updates on the server...
log.js:25 Ignored an update to unaccepted module ./src/print.js -> 1
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
onUnaccepted @ only-dev-server.js:25
hotApply @ bootstrap e5893b5…:437
(anonymous) @ only-dev-server.js:20
log.js:25 [HMR] The following modules couldn't be hot updated: (They would need a full reload!)
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
./node_modules/webpack/hot/log-apply-result.js.module.exports @ log-apply-result.js:12
(anonymous) @ only-dev-server.js:39
log.js:25 [HMR]  - ./src/print.js
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
(anonymous) @ log-apply-result.js:14
./node_modules/webpack/hot/log-apply-result.js.module.exports @ log-apply-result.js:13
(anonymous) @ only-dev-server.js:39
log.js:23 [HMR] Nothing hot updated.
log.js:23 [HMR] App is up to date.
index.js:8 Accepting the updated printMe module!
log.js:23 [HMR] Updated modules:
log.js:23 [HMR]  - ./src/print.js
log.js:23 [HMR] App is up to date.

The following is my code:

webpack.config.js:

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpack = require('webpack');

module.exports = {
  devtool: 'inline-source-map',
  devServer: {
    contentBase: path.resolve(__dirname, 'dist'),
    hotOnly: true,
  },
  entry: {
    app: './src/index.js',
    print: './src/print.js'
  },
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Hot Module Replacement',
      filename: 'index.html',
    }),
    new CleanWebpackPlugin(['dist']),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
  ],
};

./src/index.js:

import _ from 'lodash';
import printMe from './print.js';

if(module.hot) {
  module.hot.accept('./print.js', function() {
    console.log('Accepting the updated printMe module!');

    document.body.removeChild(element);
    element = ponent();
    document.body.appendChild(element);
  });
}

let element = ponent();

function ponent() {
  const element = document.createElement('div');
  const btn = document.createElement('button');

  element.innerHTML = _.join(['Hell', 'webpack'], ' ');

  btn.innerHTML = 'Click me and check the console!';
  btn.onclick = printMe;

  element.appendChild(btn);

  return element;
}

document.body.appendChild(element);

./src/print.js:

export default function printMe() {
  //console.log('I get called from print.js!');
  console.log('Updating print.js...')
}

package.json:

{
  "name": "webpack-demo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "webpack",
    "start": "webpack-dev-server --open"
  },
  "keywords": [
    "webpack",
    "demo"
  ],
  "author": "",
  "license": "MIT",
  "dependencies": {
    "lodash": "^4.17.4"
  },
  "devDependencies": {
    "clean-webpack-plugin": "^0.1.16",
    "html-webpack-plugin": "^2.29.0",
    "webpack": "^3.4.1",
    "webpack-dev-server": "^2.6.1"
  }
}

other environment:

• node v7.4.0
• npm 4.0.5
• macOS Sierra 10.12
• Chrome v59.0.3071.115

please give me help.

The console outputs Ignored an update to unaccepted module error, how to fix it?

log.js:25 Ignored an update to unaccepted module ./src/print.js -> 1
log.js:25 [HMR] The following modules couldn't be hot updated: (They would need a full reload!)
log.js:25 [HMR]  - ./src/print.js

the whole console message is:

log.js:23 [HMR] Waiting for update signal from WDS...
log.js:23 [HMR] Waiting for update signal from WDS...
client?cd17:64 [WDS] Hot Module Replacement enabled.
client?cd17:64 [WDS] Hot Module Replacement enabled.
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:67 [WDS] App updated. Repiling...
client?cd17:193 [WDS] App hot update...
log.js:23 [HMR] Checking for updates on the server...
client?cd17:193 [WDS] App hot update...
log.js:23 [HMR] Checking for updates on the server...
log.js:25 Ignored an update to unaccepted module ./src/print.js -> 1
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
onUnaccepted @ only-dev-server.js:25
hotApply @ bootstrap e5893b5…:437
(anonymous) @ only-dev-server.js:20
log.js:25 [HMR] The following modules couldn't be hot updated: (They would need a full reload!)
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
./node_modules/webpack/hot/log-apply-result.js.module.exports @ log-apply-result.js:12
(anonymous) @ only-dev-server.js:39
log.js:25 [HMR]  - ./src/print.js
./node_modules/webpack/hot/log.js.module.exports @ log.js:25
(anonymous) @ log-apply-result.js:14
./node_modules/webpack/hot/log-apply-result.js.module.exports @ log-apply-result.js:13
(anonymous) @ only-dev-server.js:39
log.js:23 [HMR] Nothing hot updated.
log.js:23 [HMR] App is up to date.
index.js:8 Accepting the updated printMe module!
log.js:23 [HMR] Updated modules:
log.js:23 [HMR]  - ./src/print.js
log.js:23 [HMR] App is up to date.

The following is my code:

webpack.config.js:

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpack = require('webpack');

module.exports = {
  devtool: 'inline-source-map',
  devServer: {
    contentBase: path.resolve(__dirname, 'dist'),
    hotOnly: true,
  },
  entry: {
    app: './src/index.js',
    print: './src/print.js'
  },
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Hot Module Replacement',
      filename: 'index.html',
    }),
    new CleanWebpackPlugin(['dist']),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
  ],
};

./src/index.js:

import _ from 'lodash';
import printMe from './print.js';

if(module.hot) {
  module.hot.accept('./print.js', function() {
    console.log('Accepting the updated printMe module!');

    document.body.removeChild(element);
    element = ponent();
    document.body.appendChild(element);
  });
}

let element = ponent();

function ponent() {
  const element = document.createElement('div');
  const btn = document.createElement('button');

  element.innerHTML = _.join(['Hell', 'webpack'], ' ');

  btn.innerHTML = 'Click me and check the console!';
  btn.onclick = printMe;

  element.appendChild(btn);

  return element;
}

document.body.appendChild(element);

./src/print.js:

export default function printMe() {
  //console.log('I get called from print.js!');
  console.log('Updating print.js...')
}

package.json:

{
  "name": "webpack-demo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "webpack",
    "start": "webpack-dev-server --open"
  },
  "keywords": [
    "webpack",
    "demo"
  ],
  "author": "",
  "license": "MIT",
  "dependencies": {
    "lodash": "^4.17.4"
  },
  "devDependencies": {
    "clean-webpack-plugin": "^0.1.16",
    "html-webpack-plugin": "^2.29.0",
    "webpack": "^3.4.1",
    "webpack-dev-server": "^2.6.1"
  }
}

other environment:

• node v7.4.0
• npm 4.0.5
• macOS Sierra 10.12
• Chrome v59.0.3071.115

please give me help.

• javascript
• webpack
• webpack-dev-server
• webpack-hmr

2 Answers 2

After debugging and testing, I think I know the answer.

Webpack-dev-server creates a client side script for every entry.

When I don't write any HMR interface, console outputs like this:

It seems like for the app(./src/index.js) client side script, index.js will accept the change of its dependency - print.js.

But for the print(./src/print.js) client side script, nothing will accept the change of its dependency - print.js.

So, only write a HMR interface in index.js don't work to the second situation and it throws Ignored an update to unaccepted module error.

Removing print.js from entry prop of webpack configuration should solve this issue.