I'm trying to start my angular project but i have this error Cannot find namespace 'DataTables'. this is angular.json and this is package.json "dependencies": { "@angular/animations": "~11.2.7", "@angular/cdk": "^11.2.13", "@angular/common": "~11.2.7", "@angular/compiler": "~11.2.7", "@angular/core": "~11.2.7", "@angular/forms": "~11.2.7", "@angular/platform-browser": "~11.2.7", "@angular/platform-browser-dynamic": "~11.2.7", "@angular/router": "~11.2.7", "@fortawesome/angular-fontawesome": "^0.8.2", "@fortawesome/fontawesome-svg-core": "^1.2.34", "@fortawesome/free-solid-svg-icons": "^5.15.2", "angular-datatables": "^11.2.0", "angular2-tag-input": "^1.2.3", "bootstrap-tagsinput": "^0.7.1", "c": "^1.1.1", "chart.js": "^2.9.3", "chartjs-plugin-annotation": "^0.5.7", "chartjs-plugin-datalabels": "^0.7.0", "datatables.net": "^1.10.20", "datatables.net-bs4": "^1.10.20", "datatables.net-buttons": "^1.7.0", "datatables.net-buttons-dt": "^1.7.0", "file-saver": "^2.0.5", "jquery": "^3.4.1", "lodash": "^4.17.21", "nanoid": "^3.1.23", "ng-multiselect-dropdown": "^0.3.4", "ng2-charts": "^2.3.0", "ngx-daterangepicker-material": "^4.0.1", "nodemailer": "^6.6.0", "rxjs": "~6.6.0", "rxjs-compat": "^6.6.7", "sweetalert2": "^10.16.7", "tslib": "^2.0.0", "xlsx": "^0.18.5", "zone.js": "~0.11.3" }, "devDependencies": { "@angular-devkit/build-angular": "~0.1102.6", "@angular/cli": "~11.2.6", "@angular/compiler-cli": "~11.2.7", "@types/datatables.net": "^1.10.18", "@types/datatables.net-buttons": "^1.4.5", "@types/jasmine": "~3.6.0", "@types/jquery": "^3.3.33", "@types/lodash": "^4.14.168", "@types/node": "^12.11.1", "codelyzer": "^6.0.0", "jasmine-core": "~3.6.0", "jasmine-spec-reporter": "~5.0.0", "karma": "~6.1.0", "karma-chrome-launcher": "~3.1.0", "karma-coverage": "~2.0.3", "karma-jasmine": "~4.0.0", "karma-jasmine-html-reporter": "^1.5.0", "protractor": "~7.0.0", "ts-node": "~8.3.0", "tslint": "~6.1.0", "typescript": "~4.1.5" } } this is my ng version and nvm list Continue reading...