Dear Sir/Madam, I had a perfectly running Application developed suing Angular 6.
I upgraded to Angular 7. The whole application was destroyed. It took 4 days to restore the application. Now, I can build the application in development mode and it works. I am trying to make the production build. However, I get the following error. Please help so that I can create the development build. Regards, Partha Command: ng build --prod --aot Output: The /Users/parthamajumdar/Documents/Solutions/Paikari/pConfMan-v1/src/ undefined path in file replacements does not exist. Error: The /Users/parthamajumdar/Documents/Solutions/Paikari/pConfMan-v1/src /undefined pathin file replacements does not exist. at TapSubscriber.operators_1.tap [as _tapNext] (/Users/parthamajumdar/ Documents/Solutions/Paikari/pConfMan-v1/node_modules/@angular-devkit/build- angular/src/utils/normalize-file-replacements.js:26:19) at TapSubscriber._next (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/rxjs/internal/operators/tap.js:59:27) at TapSubscriber.Subscriber.next (/Users/parthamajumdar/Documents/ Solutions/Paikari/pConfMan-v1/node_modules/rxjs/internal/Subscriber.js:67:18 ) at SafeSubscriber.__tryOrUnsub (/Users/parthamajumdar/Documents/ Solutions/Paikari/pConfMan-v1/node_modules/@angular-devkit/core/node_modules /rxjs/internal/Subscriber.js:209:16) at SafeSubscriber.next (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/ internal/Subscriber.js:147:22) at Subscriber._next (/Users/parthamajumdar/Documents/Solutions/Paikari/ pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/internal/ Subscriber.js:90:26) at Subscriber.next (/Users/parthamajumdar/Documents/Solutions/Paikari/ pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/internal/ Subscriber.js:67:18) at Observable.rxjs_1.Observable.obs [as _subscribe] (/Users/ parthamajumdar/Documents/Solutions/Paikari/pConfMan-v1/node_modules/@angular -devkit/core/node/host.js:241:21) at Observable._trySubscribe (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/ internal/Observable.js:44:25) at Observable.subscribe (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/ internal/Observable.js:30:22) at DoOperator.call (/Users/parthamajumdar/Documents/Solutions/Paikari/ pConfMan-v1/node_modules/rxjs/internal/operators/tap.js:32:23) at Observable.subscribe (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/@angular-devkit/core/node_modules/rxjs/ internal/Observable.js:25:22) at /Users/parthamajumdar/Documents/Solutions/Paikari/pConfMan-v1/ node_modules/rxjs/internal/util/subscribeToObservable.js:10:20 at Object.subscribeToResult (/Users/parthamajumdar/Documents/Solutions/ Paikari/pConfMan-v1/node_modules/rxjs/internal/util/subscribeToResult.js:10: 45) at MergeMapSubscriber._innerSub (/Users/parthamajumdar/Documents/ Solutions/Paikari/pConfMan-v1/node_modules/rxjs/internal/operators/mergeMap. js:82:29) at MergeMapSubscriber._tryNext (/Users/parthamajumdar/Documents/ Solutions/Paikari/pConfMan-v1/node_modules/rxjs/internal/operators/mergeMap. js:76:14) -- You received this message because you are subscribed to the Google Groups "Angular and AngularJS discussion" group. To unsubscribe from this group and stop receiving emails from it, send an email to angular+unsubscr...@googlegroups.com. To post to this group, send email to angular@googlegroups.com. Visit this group at https://groups.google.com/group/angular. For more options, visit https://groups.google.com/d/optout.