Html Webpack Plugin:
  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:2084:28
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1060:13
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :10:1)
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:442:22
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :9:1)
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:628:22
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:185:10
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:902:25
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1145:8
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1274:5
      at /app/node_modules/neo-async/async.js:6883:13
      at /app/node_modules/webpack/lib/NormalModuleFactory.js:1257:45
      at finishWithoutResolve (/app/node_modules/enhanced-resolve/lib/Resolver.j  s:590:11)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:679:14
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :27:1)
      at /app/node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js:89:43
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :15:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :27:1)
      at /app/node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js:89:43
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :16:1)
      at /app/node_modules/enhanced-resolve/lib/Resolver.js:740:5
      at eval (eval at create (/app/node_modules/tapable/lib/HookCodeFactory.js:  31:10), :15:1)
      at /app/node_modules/enhanced-resolve/lib/DirectoryExistsPlugin.js:43:15
      at process.processTicksAndRejections (node:internal/process/task_queues:81  :21)
  
  - Compilation.js:2084 
    [app]/[webpack]/lib/Compilation.js:2084:28
  
  - NormalModuleFactory.js:1060 
    [app]/[webpack]/lib/NormalModuleFactory.js:1060:13
  
  
  - NormalModuleFactory.js:442 
    [app]/[webpack]/lib/NormalModuleFactory.js:442:22
  
  
  - NormalModuleFactory.js:628 
    [app]/[webpack]/lib/NormalModuleFactory.js:628:22
  
  - NormalModuleFactory.js:185 
    [app]/[webpack]/lib/NormalModuleFactory.js:185:10
  
  - NormalModuleFactory.js:902 
    [app]/[webpack]/lib/NormalModuleFactory.js:902:25
  
  - NormalModuleFactory.js:1145 
    [app]/[webpack]/lib/NormalModuleFactory.js:1145:8
  
  - NormalModuleFactory.js:1274 
    [app]/[webpack]/lib/NormalModuleFactory.js:1274:5
  
  - async.js:6883 
    [app]/[neo-async]/async.js:6883:13
  
  - NormalModuleFactory.js:1257 
    [app]/[webpack]/lib/NormalModuleFactory.js:1257:45
  
  - Resolver.js:590 finishWithoutResolve
    [app]/[enhanced-resolve]/lib/Resolver.js:590:11
  
  - Resolver.js:679 
    [app]/[enhanced-resolve]/lib/Resolver.js:679:14
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - DescriptionFilePlugin.js:89 
    [app]/[enhanced-resolve]/lib/DescriptionFilePlugin.js:89:43
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - DescriptionFilePlugin.js:89 
    [app]/[enhanced-resolve]/lib/DescriptionFilePlugin.js:89:43
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - Resolver.js:740 
    [app]/[enhanced-resolve]/lib/Resolver.js:740:5
  
  
  - DirectoryExistsPlugin.js:43 
    [app]/[enhanced-resolve]/lib/DirectoryExistsPlugin.js:43:15
  
  - task_queues:81 process.processTicksAndRejections
    node:internal/process/task_queues:81:21
  
  - child-compiler.js:211 
    [app]/[html-webpack-plugin]/lib/child-compiler.js:211:18
  
  - Compiler.js:655 finalCallback
    [app]/[webpack]/lib/Compiler.js:655:5
  
  - Compiler.js:691 
    [app]/[webpack]/lib/Compiler.js:691:11
  
  - Compiler.js:1386 
    [app]/[webpack]/lib/Compiler.js:1386:17
  
  
  - Hook.js:21 Hook.CALL_ASYNC_DELEGATE [as _callAsync]
    [app]/[tapable]/lib/Hook.js:21:14
  
  - Compiler.js:1382 
    [app]/[webpack]/lib/Compiler.js:1382:33
  
  - Compilation.js:3194 finalCallback
    [app]/[webpack]/lib/Compilation.js:3194:11
  
  - Compilation.js:3532 
    [app]/[webpack]/lib/Compilation.js:3532:11
  
  
  - Hook.js:21 Hook.CALL_ASYNC_DELEGATE [as _callAsync]
    [app]/[tapable]/lib/Hook.js:21:14
  
  - Compilation.js:3525 
    [app]/[webpack]/lib/Compilation.js:3525:38
  
  
  - Compilation.js:656 
    [app]/[webpack]/lib/Compilation.js:656:11
  
  - SourceMapDevToolPlugin.js:637 
    [app]/[webpack]/lib/SourceMapDevToolPlugin.js:637:10
  
  - async.js:2830 
    [app]/[neo-async]/async.js:2830:7
  
  - async.js:2857 Object.each
    [app]/[neo-async]/async.js:2857:9