Error: Child compilation failed:
  Module not found: Error: Can't resolve '/app/public/index.html' in '/app'
  ModuleNotFoundError: Module not found: Error: Can't resolve '/app/public/index  .html' in '/app'
      at /app/node_modules/webpack/lib/Compilation.js:2123:28
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:923:13
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :10:1)
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:339:22
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :9:1)
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:520:22
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:151:10
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:783:25
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1008:8
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1137:5
      at /app/node_modules/neo-async/async.js:6883:13
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1120:45
      at finishWithoutResolve (/app/node_modules/enhanced-resolve/lib/Resolver.j  s:567:11)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:656:15
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :15:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:718:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  33:10), :15:1)
      at /app/node_modules/enhanced-resolve/lib/DirectoryExistsPlugin.js:41:15
      at processTicksAndRejections (node:internal/process/task_queues:82:21)
  
  - Compilation.js:2123 
    [app]/[webpack]/lib/Compilation.js:2123:28
  
  - NormalModuleFactory.js:923 
    [app]/[webpack]/lib/NormalModuleFactory.js:923:13
  
  
  - NormalModuleFactory.js:339 
    [app]/[webpack]/lib/NormalModuleFactory.js:339:22
  
  
  - NormalModuleFactory.js:520 
    [app]/[webpack]/lib/NormalModuleFactory.js:520:22
  
  - NormalModuleFactory.js:151 
    [app]/[webpack]/lib/NormalModuleFactory.js:151:10
  
  - NormalModuleFactory.js:783 
    [app]/[webpack]/lib/NormalModuleFactory.js:783:25
  
  - NormalModuleFactory.js:1008 
    [app]/[webpack]/lib/NormalModuleFactory.js:1008:8
  
  - NormalModuleFactory.js:1137 
    [app]/[webpack]/lib/NormalModuleFactory.js:1137:5
  
  - async.js:6883 
    [app]/[neo-async]/async.js:6883:13
  
  - NormalModuleFactory.js:1120 
    [app]/[webpack]/lib/NormalModuleFactory.js:1120:45
  
  - Resolver.js:567 finishWithoutResolve
    [app]/[enhanced-resolve]/lib/Resolver.js:567:11
  
  - Resolver.js:656 
    [app]/[enhanced-resolve]/lib/Resolver.js:656:15
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - Resolver.js:718 
    [app]/[enhanced-resolve]/lib/Resolver.js:718:5
  
  
  - DirectoryExistsPlugin.js:41 
    [app]/[enhanced-resolve]/lib/DirectoryExistsPlugin.js:41:15
  
  - task_queues:82 processTicksAndRejections
    node:internal/process/task_queues:82:21
  
  - child-compiler.js:211 
    [app]/[html-webpack-plugin]/lib/child-compiler.js:211:18
  
  - Compiler.js:629 finalCallback
    [app]/[webpack]/lib/Compiler.js:629:5
  
  - Compiler.js:664 
    [app]/[webpack]/lib/Compiler.js:664:11
  
  - Compiler.js:1350 
    [app]/[webpack]/lib/Compiler.js:1350:17
  
  
  - Hook.js:18 Hook.CALL_ASYNC_DELEGATE [as _callAsync]
    [app]/[tapable]/lib/Hook.js:18:14
  
  - Compiler.js:1346 
    [app]/[webpack]/lib/Compiler.js:1346:33
  
  - Compilation.js:2938 finalCallback
    [app]/[webpack]/lib/Compilation.js:2938:11
  
  - Compilation.js:3251 
    [app]/[webpack]/lib/Compilation.js:3251:11
  
  
  - Hook.js:18 Hook.CALL_ASYNC_DELEGATE [as _callAsync]
    [app]/[tapable]/lib/Hook.js:18:14
  
  - Compilation.js:3244 
    [app]/[webpack]/lib/Compilation.js:3244:38
  
  
  - Compilation.js:540 
    [app]/[webpack]/lib/Compilation.js:540:10
  
  - SourceMapDevToolPlugin.js:607 
    [app]/[webpack]/lib/SourceMapDevToolPlugin.js:607:10
  
  - async.js:2830 
    [app]/[neo-async]/async.js:2830:7
  
  - async.js:2857 Object.each
    [app]/[neo-async]/async.js:2857:9
  
  - SourceMapDevToolPlugin.js:423 
    [app]/[webpack]/lib/SourceMapDevToolPlugin.js:423:17
  
  - async.js:2830 
    [app]/[neo-async]/async.js:2830:7