Material: Unexpected value 'MatTableDataSource' imported by the module 'AppModule'.

[jeanbacan]

I'm having this issue when fallowing the exact same code from api docs:

https://material.angular.io/components/table/overview

My Dependencies:

"dependencies": {
"@angular/animations": "^5.0.0",
"@angular/cdk": "^5.0.0-rc0",
"@angular/common": "^5.0.0",
"@angular/compiler": "^5.0.0",
"@angular/core": "^5.0.0",
"@angular/forms": "^5.0.0",
"@angular/http": "^5.0.0",
"@angular/material": "^5.0.0-rc0",
"@angular/platform-browser": "^5.0.0",
"@angular/platform-browser-dynamic": "^5.0.0",
"@angular/router": "^5.0.0",
"core-js": "^2.4.1",
"rxjs": "^5.5.2",
"zone.js": "^0.8.14"
},
"devDependencies": {
"@angular/cli": "1.5.0",
"@angular/compiler-cli": "^5.0.0",
"@angular/language-service": "^5.0.0",
"@types/jasmine": "~2.5.53",
"@types/jasminewd2": "~2.0.2",
"@types/node": "~6.0.60",
"codelyzer": "~3.2.0",
"jasmine-core": "~2.6.2",
"jasmine-spec-reporter": "~4.1.0",
"karma": "~1.7.0",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^1.2.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.2",
"ts-node": "~3.2.0",
"tslint": "~5.7.0",
"typescript": "^2.4.2"
}

Didn't found anything related to angular-material on google.

[dliebel]

Hello
I had the same problem, and reinstalled everything but first update the packages with

https://www.npmjs.com/package/npm-check-updates

npm install -g npm-check-updates

ncu -u

After updating the packege.json I gave it a

npm install

[jeanbacan]

I tried but got the same error. I didn't removed node_modules, just use npm install

Since eu solved updating packages, must be conflicting versions.

[jeanbacan]

Solved importing MatTableModule and MatTableDataSource since i didnt imported all components.

[ChristianLieven]

@jeanbacan Could you outline which components were missing? I'm having the same issue as you.

[Splaktar]

This issue is posted in the wrong repository. This is the AngularJS Material repo and not the Angular Material repo. Please re-post this issue here: https://github.com/angular/material2/issues/new

[mauroherlein]

@dliebel thanks! your solution work for me!

[phpdevmd]

Thanks @dliebel that worked for me also.
Most likely I needed to update "@angular/material" and "@angular/cdk" to "5.0.0-rc.2".

[ulrichdohou]

Great @dliebel . It worked like a charm.

[BambangHeriSetiawan]

thanks @dliebel . it worked

[xtoblizi]

Well The simplest thing to do is Remove import and export of the MatTableDataSource from your MaterialModule (that is if you created a seperate shared module for material design compoents and submodules).

Remove the import of MatTableDataSource from appModule also.
Just import it from @angular/core on the component where you choose to use it. It worked for me well on angular 6