I'm learning Angular Material and I'm getting this error when importing { MatButtonModule } from "@angular/material/button".
From what I read in other answers, it looks like package compatibility issues but I couldn't fix it.
Here's the full error
ERROR in node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(29,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(30,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(128,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(129,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(134,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/focus-trap/focus-trap.d.ts(135,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/key-manager/list-key-manager.d.ts(96,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/key-manager/list-key-manager.d.ts(98,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/live-announcer/live-announcer.d.ts(69,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/a11y/live-announcer/live-announcer.d.ts(70,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/observers/observe-content.d.ts(62,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/observers/observe-content.d.ts(63,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/observers/observe-content.d.ts(66,9): error TS1086: An accessor cannot be declared in an ambient context.
node_modules/@angular/cdk/observers/observe-content.d.ts(67,9): error TS1086: An accessor cannot be declared in an ambient context.
Here's my package.json
"name": "football",
"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/animations": "~8.2.14",
"@angular/cdk": "^9.0.0",
"@angular/common": "~8.2.14",
"@angular/compiler": "~8.2.14",
"@angular/core": "~8.2.14",
"@angular/forms": "~8.2.14",
"@angular/material": "8.2.3",
"@angular/platform-browser": "~8.2.14",
"@angular/platform-browser-dynamic": "~8.2.14",
"@angular/router": "~8.2.14",
"hammerjs": "^2.0.8",
"rxjs": "~6.4.0",
"tslib": "^1.10.0",
"zone.js": "~0.9.1"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.803.21",
"@angular/cli": "~8.3.21",
"@angular/compiler-cli": "~8.2.14",
"@angular/language-service": "~8.2.14",
"@types/node": "~8.9.4",
"@types/jasmine": "~3.3.8",
"@types/jasminewd2": "~2.0.3",
"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"
}
}
According to your package.json, you're using Angular 8.3, but you've imported angular/cdk v9. You can downgrade your angular/cdk version or you can upgrade your Angular version to v9 by running:
ng update @angular/core @angular/cli
That will update your local angular version to 9. Then, just to sync material, run:
ng update @angular/material
First please check in module.ts file that in @NgModule all properties are only one time.
If any of are more than one time then also this error come.
Because I had also occur this error but in module.ts file entryComponents property were two time that's why I was getting this error.
I resolved this error by removing one time entryComponents from @NgModule.
So, I recommend that first you check it properly.
Adding skipLibCheck: true in compilerOptions inside tsconfig.json file fixed my issue.
"compilerOptions": {
"skipLibCheck": true,
},
These issue arise generally due to mismatch between @ngx-translate/core version and Angular .Before installing check compatible version of corresponding ngx_trnalsate/Core, @ngx-translate/http-loader and Angular at https://www.npmjs.com/package/@ngx-translate/core
Eg: For Angular 6.X versions,
npm install @ngx-translate/core@10 @ngx-translate/http-loader@3 rxjs --save
Like as above, follow below command and rest of code part is common for all versions(Note: Version can obtain from( https://www.npmjs.com/package/@ngx-translate/core)
npm install @ngx-translate/core@version @ngx-translate/http-loader@version rxjs --save
I had this problem but didn't have a version conflict in my package.json.
My package-lock.json was somehow out of sync with package json though. Deleting and regenerating it worked for me.
I solved the same issue by following steps:
Check the angular version: Using command: ng version My angular version is: Angular CLI: 7.3.10
After that I have support version of ngx bootstrap from the link: https://www.npmjs.com/package/ngx-bootstrap
In package.json file update the version: "bootstrap": "^4.5.3", "@ng-bootstrap/ng-bootstrap": "^4.2.2",
Now after updating package.json, use the command npm update
After this use command ng serve and my error got resolved
npm i @ionic/storage@2.2.0
this is install to degrade your storage package