一旦引入 html-webpack-plugin就报错
window10 ，npm版本2.14.12 ，node版本7.8.0
不使用html-webpack-plugin的时候能够正常打包（代码应该没写错，跟视频还有html-webpack-plugin的npm主页里用法一致）
package.json里面：
"devDependencies": {
"html-webpack-plugin": "^2.28.0",
"webpack": "^2.3.2"
}
webpack.config.js里面：
var HtmlWebpackPlugin = require('html-webpack-plugin');
plugins: [ new HtmlWebpackPlugin() ]
报错信息：
ERROR in TypeError: Cannot read property '0' of undefined
- ExternalModuleFactoryPlugin.js:19
[Webpac-in-action]/[.2.6.1@webpack]/lib/ExternalModuleFactoryPlugin.js:19:40
- NormalModuleFactory.js:159
[nodejs]/[webpack]/lib/NormalModuleFactory.js:159:3
- Tapable.js:75 NormalModuleFactory.applyPluginsAsyncWaterfall
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:75:69
- NormalModuleFactory.js:144 NormalModuleFactory.create
[nodejs]/[webpack]/lib/NormalModuleFactory.js:144:8
- Compilation.js:356 Compilation.process [as _addModuleChain]
[nodejs]/[webpack]/lib/Compilation.js:356:16
- Compilation.js:424 Compilation.process [as addEntry]
[nodejs]/[webpack]/lib/Compilation.js:424:7
- SingleEntryPlugin.js:24 Compiler.compiler.plugin
[Webpac-in-action]/[.2.6.1@webpack]/lib/SingleEntryPlugin.js:24:16
- Tapable.js:107 Compiler.applyPluginsParallel
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:107:14
- Compiler.js:394 Compiler.compile
[nodejs]/[webpack]/lib/Compiler.js:394:7
- Compiler.js:203 Compiler.runAsChild
[nodejs]/[webpack]/lib/Compiler.js:203:7
- compiler.js:70
[Webpac-in-action]/[.2.28.0@html-webpack-plugin]/lib/compiler.js:70:19
- debuggability.js:300 Promise._execute
[Webpac-in-action]/[.3.5.0@bluebird]/js/release/debuggability.js:300:9
- promise.js:483 Promise._resolveFromExecutor
[Webpac-in-action]/[.3.5.0@bluebird]/js/release/promise.js:483:18
- promise.js:79 new Promise
[Webpac-in-action]/[.3.5.0@bluebird]/js/release/promise.js:79:10
- compiler.js:69 Object.compileTemplate
[Webpac-in-action]/[.2.28.0@html-webpack-plugin]/lib/compiler.js:69:10
- index.js:47 Compiler.<anonymous>
[Webpac-in-action]/[.2.28.0@html-webpack-plugin]/index.js:47:40
- Tapable.js:107 Compiler.applyPluginsParallel
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:107:14
- Compiler.js:394 Compiler.compile
[nodejs]/[webpack]/lib/Compiler.js:394:7
- Compiler.js:173 Compiler.<anonymous>
[nodejs]/[webpack]/lib/Compiler.js:173:9
- Compiler.js:302 Compiler.readRecords
[nodejs]/[webpack]/lib/Compiler.js:302:10
- Compiler.js:170 Compiler.<anonymous>
[nodejs]/[webpack]/lib/Compiler.js:170:8
- Tapable.js:67 Compiler.next
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:67:11
- NodeEnvironmentPlugin.js:23 Compiler.<anonymous>
[nodejs]/[webpack]/lib/node/NodeEnvironmentPlugin.js:23:3
- Tapable.js:69 Compiler.next
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:69:14
- CachePlugin.js:22 Compiler.<anonymous>
[nodejs]/[webpack]/lib/CachePlugin.js:22:58
- Tapable.js:71 Compiler.applyPluginsAsync
[nodejs]/[webpack]/[tapable]/lib/Tapable.js:71:13
- Compiler.js:167 Compiler.run
[nodejs]/[webpack]/lib/Compiler.js:167:7
- webpack.js:188 processOptions
[nodejs]/[webpack]/bin/webpack.js:188:12
- webpack.js:192 Object.<anonymous>
[nodejs]/[webpack]/bin/webpack.js:192:1
