按视频敲加上这句

就变成这个样子
Html Webpack Plugin:
Error: Child compilation failed:
Module not found: Error: Cannot resolve ‘file’ or ‘directory’ ./layout/nav-sid e.html in C:\Users\Administrator\Desktop\dianshang\doc\mmall-fe\src\view:
Error: Cannot resolve ‘file’ or ‘directory’ ./layout/nav-side.html in C:\Users \Administrator\Desktop\dianshang\doc\mmall-fe\src\view

• compiler.js:79 childCompiler.runAsChild
  [mmall-fe]/[html-webpack-plugin]/lib/compiler.js:79:16

• Compiler.js:214 Compiler.
  [mmall-fe]/[webpack]/lib/Compiler.js:214:10

• Compiler.js:403
  [mmall-fe]/[webpack]/lib/Compiler.js:403:12

• Tapable.js:67 Compiler.next
  [mmall-fe]/[tapable]/lib/Tapable.js:67:11

• CachePlugin.js:40 Compiler.
  [mmall-fe]/[webpack]/lib/CachePlugin.js:40:4

• Tapable.js:71 Compiler.applyPluginsAsync
  [mmall-fe]/[tapable]/lib/Tapable.js:71:13

• Compiler.js:400 Compiler.
  [mmall-fe]/[webpack]/lib/Compiler.js:400:9

• Compilation.js:577 Compilation.
  [mmall-fe]/[webpack]/lib/Compilation.js:577:13

• Tapable.js:60 Compilation.applyPluginsAsync
  [mmall-fe]/[tapable]/lib/Tapable.js:60:69

• Compilation.js:572 Compilation.
  [mmall-fe]/[webpack]/lib/Compilation.js:572:10