[Solved] TypeError Error: Cannot read property ‘0’ of undefined

Get a simple project from GitHub. I want to have a look at it, but there is an exception when running NPM start, that is, react scripts start

The general errors are as follows:

- ExternalModuleFactoryPlugin.js:19 
    [web]/[webpack]/lib/ExternalModuleFactoryPlugin.js:19:40
  
  - NormalModuleFactory.js:159 
    [web]/[react-scripts]/[webpack]/lib/NormalModuleFactory.js:159:3
  
  - Tapable.js:75 NormalModuleFactory.applyPluginsAsyncWaterfall
    [web]/[react-scripts]/[tapable]/lib/Tapable.js:75:69
  
  - NormalModuleFactory.js:144 NormalModuleFactory.create
    [web]/[react-scripts]/[webpack]/lib/NormalModuleFactory.js:144:8
  
  - Compilation.js:356 Compilation.process [as _addModuleChain]
    [web]/[react-scripts]/[webpack]/lib/Compilation.js:356:16
  
  - Compilation.js:424 Compilation.process [as addEntry]
    [web]/[react-scripts]/[webpack]/lib/Compilation.js:424:7
  
  - SingleEntryPlugin.js:24 Compiler.compiler.plugin
    [web]/[webpack]/lib/SingleEntryPlugin.js:24:16
  
  - Tapable.js:107 Compiler.applyPluginsParallel
    [web]/[react-scripts]/[tapable]/lib/Tapable.js:107:14
  
  - Compiler.js:394 Compiler.compile
    [web]/[react-scripts]/[webpack]/lib/Compiler.js:394:7
  
  - Compiler.js:203 Compiler.runAsChild
    [web]/[react-scripts]/[webpack]/lib/Compiler.js:203:7
  
  - compiler.js:70 
    [web]/[html-webpack-plugin]/lib/compiler.js:70:19
  
  - compiler.js:69 Object.compileTemplate
    [web]/[html-webpack-plugin]/lib/compiler.js:69:10
  
  - index.js:47 Compiler.<anonymous>
    [web]/[html-webpack-plugin]/index.js:47:40 Later, after much searching, it looked like the react-scripts version conflicted with the webpack version, so the react-scripts version was lowered from 0.9.5 to 0.7.0

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