Help [Chat_proj] : TypeError: _registerServiceWorker__WEBPACK_IMPORTED_MODULE_4__ is not a function

[ctkqiang]

TypeError: _registerServiceWorker__WEBPACK_IMPORTED_MODULE_4__ is not a function

Module../src/index.js
src/index.js:33
  30 |     </Provider>,
  31 |     document.getElementById('root')
  32 | );
> 33 | registerServiceWorker();
  34 | 
  35 | // If you want your app to work offline and load faster, you can change
  36 | // unregister() to register() below. Note this comes with some pitfalls.
View compiled
__webpack_require__
/home/sabrina/Desktop/API/chat/chat/webpack/bootstrap:782
  779 | };
  780 | 
  781 | // Execute the module function
> 782 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  783 | 
  784 | // Flag the module as loaded
  785 | module.l = true;
View compiled
fn
/home/sabrina/Desktop/API/chat/chat/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
0
http://localhost:3001/static/js/main.chunk.js:837:18
__webpack_require__
/home/sabrina/Desktop/API/chat/chat/webpack/bootstrap:782
  779 | };
  780 | 
  781 | // Execute the module function
> 782 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  783 | 
  784 | // Flag the module as loaded
  785 | module.l = true;
View compiled
checkDeferredModules
/home/sabrina/Desktop/API/chat/chat/webpack/bootstrap:45
  42 |  }
  43 |  if(fulfilled) {
  44 |      deferredModules.splice(i--, 1);
> 45 |      result = __webpack_require__(__webpack_require__.s = deferredModule[0]);
     | ^  46 |  }
  47 | }
  48 | return result;
View compiled
Array.webpackJsonpCallback [as push]
/home/sabrina/Desktop/API/chat/chat/webpack/bootstrap:32
  29 |  deferredModules.push.apply(deferredModules, executeModules || []);
  30 | 
  31 |  // run deferred modules when all chunks ready
> 32 |  return checkDeferredModules();
     | ^  33 | };
  34 | function checkDeferredModules() {
  35 |  var result;
View compiled
(anonymous function)
http://localhost:3001/static/js/main.chunk.js:1:57

But in my Compiler it says : -