While running ng serve command i'm getting this error - angular8

Question

Package.jon file
{
"name": "architectui-angular-free",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"#angular-redux/store": "^9.0.0",
"#angular/animations": "^7.2.11",
"#angular/cdk": "^7.3.6",
"#angular/common": "^7.2.11",
"#angular/compiler": "^7.2.11",
"#angular/core": "^7.2.11",
"#angular/forms": "^7.2.11",
"#angular/platform-browser": "^7.2.11",
"#angular/platform-browser-dynamic": "^7.2.11",
"#angular/router": "^7.2.11",
"#ng-bootstrap/ng-bootstrap": "^4.1.1",
"#ngx-loading-bar/core": "^4.2.0",
"#ngx-loading-bar/router": "^4.2.0",
"angular-font-awesome": "^3.1.2",
"animate-sass": "^0.8.2",
"bootstrap": "4.3.1",
"chart.js": "^2.8.0",
"chartjs-adapter-luxon": "^0.1.1",
"chartjs-plugin-annotation": "^0.5.7",
"chartjs-plugin-datalabels": "^0.6.0",
"font-awesome": "^4.7.0",
"lodash-es": "^4.17.11",
"ng-bootstrap": "^1.6.3",
"ng2-charts": "^2.2.2",
"ngx-perfect-scrollbar": "^7.2.1",
"pe7-icon": "^1.0.4",
"redux": "4.0.0",
"sass-loader": "^7.0.1",
"tslib": "^1.9.0",
"zone.js": "~0.8.26"
},
"devDependencies": {
"#angular-devkit/build-angular": "^0.13.9",
"#angular/cli": "^9.0.2",
"#angular/compiler-cli": "^7.2.11",
"#angular/language-service": "^7.2.11",
"#fortawesome/fontawesome-free": "^5.8.1",
"#types/jasmine": "~2.8.8",
"#types/jasminewd2": "~2.0.3",
"#types/node": "~8.9.4",
"codelyzer": "~4.5.0",
"cross-env": "^5.0.5",
"increase-memory-limit": "^1.0.3",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.1.1",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "^2.0.5",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.2.2"
}
}
ERROR
ERROR in ./src/styles.scss (./node_modules/#angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/dist/cjs.js??ref--14-3!./src/styles.scss)
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)
ERROR in ./node_modules/font-awesome/scss/font-awesome.scss (./node_modules/#angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/dist/cjs.js??ref--14-3!./node_modules/font-awesome/scss/font-awesome.scss)
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)
ERROR in ./src/app/DemoPages/Charts/chartjs/examples/pie-chart/pie-chart.component.scss
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)
ERROR in ./src/app/DemoPages/Charts/chartjs/examples/polar-area-chart/polar-area-chart.component.scss
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)
ERROR in ./src/app/DemoPages/Charts/chartjs/examples/radar-chart/radar-chart.component.scss
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)
ERROR in ./src/app/DemoPages/Charts/chartjs/examples/scatter-chart/scatter-chart.component.scss
Module build failed (from ./node_modules/sass-loader/dist/cjs.js):
ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema.
- options has an unknown property 'includePaths'. These properties are valid:
object { implementation?, sassOptions?, prependData?, sourceMap?, webpackImporter? }
at validate (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\node_modules\schema-utils\dist\validate.js:85:11)
at Object.loader (C:\Users\YASH\AppData\Roaming\npm\architectui-angular-free-theme\architectui-angular-free-theme\node_modules\sass-loader\dist\index.js:36:28)

Answer 1

May be something wrong in your packages.
Option1: Update all packages.
Option2: Re install all packages. Delete your node_modules folder and run npm-i from command-line.