So I get the following error when I tried building my application again:
ERROR in ../../../node_modules/@angular/cdk/a11y/typings/aria-describer/aria-describer.d.ts(8,42): error TS2307: Cannot find module '@angular/core
This error occurred while I was developing my angular application. I apparently got this whilst I was programming but I didn't notice it because the application simply just kept compiling whenever I made some changes. This error only started to prevented me from building the application this morning. Does anybody know what is going on here?
full error:
ERROR in ../../../node_modules/@angular/cdk/a11y/typings/aria-describer/aria-describer.d.ts(8,42): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/a11y/typings/focus-monitor/focus-monitor.d.ts(9,82): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/a11y/typings/focus-monitor/focus-monitor.d.ts(10,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/a11y/typings/focus-trap/focus-trap.d.ts(8,65): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/a11y/typings/key-manager/list-key-manager.d.ts(8,27): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/a11y/typings/key-manager/list-key-manager.d.ts(9,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/cdk/a11y/typings/live-announcer/live-announcer.d.ts(8,53): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/accordion/typings/accordion-item.d.ts(8,60): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/bidi/typings/dir.d.ts(8,59): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/bidi/typings/directionality.d.ts(8,46): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/collections/typings/collection-viewer.d.ts(8,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/collections/typings/data-source.d.ts(8,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/collections/typings/selection.d.ts(8,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/cdk/collections/typings/unique-selection-dispatcher.d.ts(8,37): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/layout/typings/breakpoints-observer.d.ts(8,35): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/layout/typings/breakpoints-observer.d.ts(10,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/overlay/typings/keyboard/overlay-keyboard-dispatcher.d.ts(8,53): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-container.d.ts(8,53): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-directives.d.ts(9,126): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-module.d.ts(1,26): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-ref.d.ts(10,55): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-ref.d.ts(11,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/overlay/typings/overlay-ref.d.ts(12,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/cdk/overlay/typings/overlay.d.ts(8,76): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/position/connected-position-strategy.d.ts(9,28): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/position/connected-position-strategy.d.ts(12,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/overlay/typings/position/overlay-position-builder.d.ts(8,28): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/scroll/close-scroll-strategy.d.ts(8,24): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/scroll/reposition-scroll-strategy.d.ts(8,24): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/overlay/typings/scroll/scroll-strategy-options.d.ts(8,24): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/portal/typings/dom-portal-outlet.d.ts(8,99): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/portal/typings/portal-directives.d.ts(8,137): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/portal/typings/portal-injector.d.ts(8,26): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/portal/typings/portal.d.ts(8,100): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/scrolling/typings/scroll-dispatcher.d.ts(8,57): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/scrolling/typings/scroll-dispatcher.d.ts(10,30): error TS2307: Cannot find module 'rxjs/Subscription'.
../../../node_modules/@angular/cdk/scrolling/typings/scroll-dispatcher.d.ts(11,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/scrolling/typings/scrollable.d.ts(8,55): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/scrolling/typings/scrollable.d.ts(9,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/scrolling/typings/viewport-ruler.d.ts(8,45): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/scrolling/typings/viewport-ruler.d.ts(10,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/cdk/stepper/typings/step-label.d.ts(8,29): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/stepper/typings/stepper.d.ts(8,107): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/stepper/typings/stepper.d.ts(10,33): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/cdk/stepper/typings/stepper.d.ts(12,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/cdk/table/typings/cell.d.ts(8,41): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/table/typings/row.d.ts(8,112): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/table/typings/table.d.ts(8,139): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/cdk/table/typings/table.d.ts(11,33): error TS2307: Cannot find module 'rxjs/BehaviorSubject'.
../../../node_modules/@angular/cdk/table/typings/table.d.ts(13,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/material/autocomplete/typings/autocomplete-trigger.d.ts(10,100): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/autocomplete/typings/autocomplete-trigger.d.ts(11,38): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/autocomplete/typings/autocomplete-trigger.d.ts(14,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/material/autocomplete/typings/autocomplete.d.ts(8,119): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/button-toggle/typings/button-toggle.d.ts(10,91): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/button-toggle/typings/button-toggle.d.ts(11,38): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/button/typings/button.d.ts(10,39): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/checkbox/typings/checkbox-config.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/checkbox/typings/checkbox-required-validator.d.ts(8,26): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/checkbox/typings/checkbox-required-validator.d.ts(9,43): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/checkbox/typings/checkbox.d.ts(9,87): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/checkbox/typings/checkbox.d.ts(10,38): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/chips/typings/chip-input.d.ts(1,42): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/chips/typings/chip-list.d.ts(11,118): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/chips/typings/chip-list.d.ts(12,77): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/chips/typings/chip-list.d.ts(15,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/material/chips/typings/chip.d.ts(9,53): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/chips/typings/chip.d.ts(11,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/material/core/typings/common-behaviors/color.d.ts(9,28): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/common-behaviors/common-module.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/common-behaviors/error-state.d.ts(10,55): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/core/typings/common-behaviors/error-state.d.ts(11,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/material/core/typings/common-behaviors/initialized.d.ts(9,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/material/core/typings/datetime/date-adapter.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/datetime/date-adapter.d.ts(9,28): error TS2307: Cannot find module 'rxjs/Observable'.
../../../node_modules/@angular/material/core/typings/datetime/date-adapter.d.ts(10,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/material/core/typings/datetime/date-formats.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/error/error-options.d.ts(1,57): error TS2307: Cannot find module '@angular/forms'.
../../../node_modules/@angular/material/core/typings/gestures/gesture-config.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/gestures/gesture-config.d.ts(9,37): error TS2307: Cannot find module '@angular/platform-browser'.
../../../node_modules/@angular/material/core/typings/label/label-options.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/line/line.d.ts(8,39): error TS2307: Cannot find module '@angular/core'.
../../../node_modules/@angular/material/core/typings/option/option.d.ts(1,25): error TS2307: Cannot find module 'rxjs/Subject'.
../../../node_modules/@angular/material/core/typings/option/option.d.ts(2,106): error TS2307: Cannot find module '@angular/core'.
../../../node_mo
