ERROR in TypeError: Cannot read property 'flags' of undefined
at resolveAlias (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:36513:37)
at checkAliasSymbol (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:64502:26)
at checkImportBinding (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:64534:13)
at checkImportDeclaration (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:64552:29)
at checkSourceElementWorker (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:64961:28)
at checkSourceElement (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:64800:17)
at Object.forEach (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:317:30)
at checkSourceFileWorker (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:65123:20)
at checkSourceFile (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:65091:13)
at getDiagnosticsWorker (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:65179:17)
at Object.getDiagnostics (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:65165:24)
at C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98703:85
at runWithCancellationToken (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98665:24)
at getBindAndCheckDiagnosticsForFileNoCache (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98691:20)
at getAndCacheDiagnostics (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98956:26)
at getBindAndCheckDiagnosticsForFile (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98688:20)
at getSemanticDiagnosticsForFile (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98685:35)
at getDiagnosticsHelper (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98604:24)
at Object.getSemanticDiagnostics (C:\Users\OM GANESH\Desktop\AngularDemo\node_modules\typescript\lib\typescript.js:98617:20)
at TypeCheckContext.calculateTemplateDiagnostics
某些版本问题,因为在角度版本9.1.5中有问题,因此>
尝试一下
npm install @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected]
ng build