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I updated my Angular application from version 9 to 10. Before updating it was working correctly. Now it's getting this error:

ERROR in ./src/assets/scss/argon.scss (./node_modules/css-loader/dist/cjs.js??ref--13-1!./node_modules/postcss-loader/src??embedded!./node_modules/resolve-url-loader??ref--13-3!./node_modules/@angular-devkit/build-angular/node_modules/sass-loader/dist/cjs.js??ref--13-4!./src/assets/scss/argon.scss)
Module build failed (from ./node_modules/@angular-devkit/build-angular/node_modules/sass-loader/dist/cjs.js):
    SassError: File to import not found or unreadable: custom/alert.
            on line 5 of src/assets/scss/custom/_components.scss
            from line 65 of src/assets/scss/argon.scss
    >> @import "custom/alert";

I tried so many answers in StackOverflow and GitHub which it would not help me. I attached my Angular.JSON and Package.JSON:

angular.json:

{
    "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
    "version": 1,
    "newProjectRoot": "projects",
    "projects": {
        "argon-dashboard-angular": {
            "root": "",
            "sourceRoot": "src",
            "projectType": "application",
            "prefix": "app",
            "schematics": {
                "@schematics/angular:component": {
                    "styleext": "scss"
                }
            },
            "architect": {
                "build": {
                    "builder": "@angular-devkit/build-angular:browser",
                    "options": {
                        "outputPath": "dist",
                        "index": "src/index.html",
                        "main": "src/main.ts",
                        "polyfills": "src/polyfills.ts",
                        "tsConfig": "src/tsconfig.app.json",
                        "assets": ["src/favicon.ico", "src/assets"],
                        "styles": [
                            "src/styles.scss",
                            "src/assets/scss/argon.scss",
                            "node_modules/sweetalert2/src/sweetalert2.scss"
                        ],
                        "scripts": [
                            "node_modules/chart.js/dist/Chart.min.js",
                            "node_modules/clipboard/dist/clipboard.min.js",
                            "node_modules/sweetalert2/dist/sweetalert2.js"
                        ]
                    },
                    "configurations": {
                        "production": {
                            "fileReplacements": [{
                                "replace": "src/environments/environment.ts",
                                "with": "src/environments/environment.prod.ts"
                            }],
                            "optimization": true,
                            "outputHashing": "all",
                            "sourceMap": false,
                            "extractCss": true,
                            "namedChunks": false,
                            "aot": true,
                            "extractLicenses": true,
                            "vendorChunk": false,
                            "buildOptimizer": true
                        }
                    }
                },
                "serve": {
                    "builder": "@angular-devkit/build-angular:dev-server",
                    "options": {
                        "browserTarget": "argon-dashboard-angular:build"
                    },
                    "configurations": {
                        "production": {
                            "browserTarget": "argon-dashboard-angular:build:production"
                        }
                    }
                },
                "extract-i18n": {
                    "builder": "@angular-devkit/build-angular:extract-i18n",
                    "options": {
                        "browserTarget": "argon-dashboard-angular:build"
                    }
                },
                "test": {
                    "builder": "@angular-devkit/build-angular:karma",
                    "options": {
                        "main": "src/test.ts",
                        "polyfills": "src/polyfills.ts",
                        "tsConfig": "src/tsconfig.spec.json",
                        "karmaConfig": "src/karma.conf.js",
                        "styles": ["src/styles.css"],
                        "scripts": [],
                        "assets": ["src/favicon.ico", "src/assets"]
                    }
                },
                "lint": {
                    "builder": "@angular-devkit/build-angular:tslint",
                    "options": {
                        "tsConfig": ["src/tsconfig.app.json", "src/tsconfig.spec.json"],
                        "exclude": ["**/node_modules/**"]
                    }
                }
            }
        },
        "argon-dashboard-angular-e2e": {
            "root": "e2e/",
            "projectType": "application",
            "architect": {
                "e2e": {
                    "builder": "@angular-devkit/build-angular:protractor",
                    "options": {
                        "protractorConfig": "e2e/protractor.conf.js",
                        "devServerTarget": "argon-dashboard-angular:serve"
                    },
                    "configurations": {
                        "production": {
                            "devServerTarget": "argon-dashboard-angular:serve:production"
                        }
                    }
                },
                "lint": {
                    "builder": "@angular-devkit/build-angular:tslint",
                    "options": {
                        "tsConfig": "e2e/tsconfig.e2e.json",
                        "exclude": ["**/node_modules/**"]
                    }
                }
            }
        }
    },
    "defaultProject": "argon-dashboard-angular",
    "schematics": {
        "@schematics/angular:component": {
            "styleext": "scss"
        }
    },
    "cli": {
        "analytics": false
    }
}

package.json:

{ "name": "argon-dashboard-angular", "version": "1.1.0", "scripts": { "ng": "ng", "start": "ng serve", "build": "ng build", "test": "ng test", "lint": "ng lint", "e2e": "ng e2e", "install:clean": "rm -rf node_modules/ && rm -rf package-lock.json && npm install && npm start" }, "private": true, "dependencies": { "@angular/animations": "10.1.1", "@angular/common": "10.1.1", "@angular/compiler": "10.1.1", "@angular/core": "10.1.1", "@angular/fire": "^6.0.2", "@angular/forms": "10.1.1", "@angular/http": "^7.2.16", "@angular/localize": "^9.0.5", "@angular/platform-browser": "10.1.1", "@angular/platform-browser-dynamic": "10.1.1", "@angular/router": "10.1.1", "@ckeditor/ckeditor5-angular": "^1.2.3", "@ckeditor/ckeditor5-build-classic": "^21.0.0", "@ng-bootstrap/ng-bootstrap": "^6.0.0", "@sweetalert2/ngx-sweetalert2": "^8.1.1", "angular-file-uploader": "^7.0.1", "bootstrap": "^4.5.2", "chart.js": "2.7.3", "clipboard": "2.0.4", "core-js": "3.6.4", "firebase": "^7.19.1", "ngx-clipboard": "13.0.0", "ngx-quill": "^12.0.1", "ngx-toastr": "12.0.0", "nouislider": "13.1.1", "quill": "^1.3.7", "rxjs": "^7.0.0-beta.5", "sass-loader": "^10.0.2", "sweetalert2": "^10.0.2", "tslib": "2.0.1", "zone.js": "0.11.1" }, "devDependencies": { "@angular-devkit/build-angular": "0.1001.1", "@angular/cli": "^10.1.1", "@angular/compiler-cli": "^10.1.1", "@angular/language-service": "^10.1.1", "@types/jasmine": "^3.5.8", "@types/jasminewd2": "^2.0.8", "@types/node": "^13.7.7", "codelyzer": "^5.2.1", "jasmine-core": "^3.5.0", "jasmine-spec-reporter": "^4.2.1", "karma": "^4.4.1", "karma-chrome-launcher": "^3.1.0", "karma-coverage-istanbul-reporter": "^2.1.1", "karma-jasmine": "^3.1.1", "karma-jasmine-html-reporter": "^1.5.2", "node-sass": "^4.14.1", "protractor": "7.0.0", "ts-node": "9.0.0", "tslint": "6.1.3", "typescript": "4.0.2" } }

3
  • 1
    I have had that error, I never figure out the cause except that there was an odd/hidden character in my sass. Try by leaving it blank, it either will fail on another sass or it will compile. If it fails in another sass clear that one up too. And then you know where to start putting things back Commented Sep 16, 2020 at 6:11
  • is that only way to do this? Commented Sep 16, 2020 at 6:15
  • it working fine with angular 9 Commented Sep 16, 2020 at 14:36

1 Answer 1

2

I fixed this. I updated all my SCSS files path by manually and build it again. previously as an example there was the path like this which is completely working with a fine in angular 9.

angular 9 import

@import "custom/components";

when I using angular 10 I updated all my SCCS path to like this

@import "./custom/components";

after above-mentioned changes appear project built successfully.

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1 Comment

You may have changed your config details such as baseUrl to cause this. But also I noticed "optimization": true which optimizes CSS like inlining and such.

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