问在锁定pc后，ng服务不再工作了？

EN

ERROR in src/app/app.component.html:13:32 - error TS2339: Property 'myDataArray' does not exist on type 'AppComponent'.

13 <table mat-table [dataSource]="myDataArray">
                                  ~~~~~~~~~~~

  src/app/app.component.ts:5:16
    5   templateUrl: './app.component.html',
                     ~~~~~~~~~~~~~~~~~~~~~~
    Error occurs in the template of component AppComponent.
src/app/app.component.html:13:18 - error NG8002: Can't bind to 'dataSource' since it isn't a known property of 'table'.

13 <table mat-table [dataSource]="myDataArray">
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~

  src/app/app.component.ts:5:16
    5   templateUrl: './app.component.html',
                     ~~~~~~~~~~~~~~~~~~~~~~
    Error occurs in the template of component AppComponent.