Estoy encontrando el error:

ERROR en ./node_modules/ng2-charts/fesm2015/ng2-charts.js

Módulo no encontrado: Error: no se puede resolver 'chart.js' en /node_modules/ng2-charts/fesm2015'

Hice "npm install --save ng2-charts". ¿Podría ayudarme a entender por qué se arroja este error?

Mi paquete.json

 "dependencies": { "@angular/animations": "~8.2.9", "@angular/common": "~8.2.9", "@angular/compiler": "~8.2.9", "@angular/core": "~8.2.9", "@angular/fire": "^5.2.3", "@angular/forms": "~8.2.9", "@angular/platform-browser": "~8.2.9", "@angular/platform-browser-dynamic": "~8.2.9", "@angular/router": "~8.2.9", "@ngrx/store": "^8.6.0", "@ngrx/store-devtools": "^8.6.0", "bootstrap": "^4.4.1", "firebase": "^7.6.0", "ng2-charts": "^2.2.3", "rxjs": "~6.4.0", "sweetalert2": "^9.5.3", "tslib": "^1.10.0", "zone.js": "~0.9.1" } "devDependencies": { "@angular-devkit/build-angular": "^0.803.21", "@angular/cli": "~8.3.8", "@angular/compiler-cli": "~8.2.9", "@angular/language-service": "~8.2.9", "@types/jasmine": "~3.3.8", "@types/jasminewd2": "~2.0.3", "@types/node": "~8.9.4", "codelyzer": "^5.0.0", "jasmine-core": "~3.4.0", "jasmine-spec-reporter": "~4.2.1", "karma": "~4.1.0", "karma-chrome-launcher": "~2.2.0", "karma-coverage-istanbul-reporter": "~2.0.1", "karma-jasmine": "~2.0.1", "karma-jasmine-html-reporter": "^1.4.0", "protractor": "~5.4.0", "ts-node": "~7.0.0", "tslint": "~5.15.0", "typescript": "~3.5.3" }

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