Unhandled promise rejection in Quick Start - Domain Model

[2015kd]

Came across below error on domain model chapter, could you pls take a look.

Unhandled Promise rejection: Unexpected value 'JokeListComponent' declared by the module 'AppModule'. Please add a @Pipe/@Directive/@component annotation. ; Zone: ; Task: null ; Value: Error: Unexpected value 'JokeListComponent' declared by the module 'AppModule'. Please add a @Pipe/@Directive/@component annotation.
at syntaxError (util.ts:100)
at eval (metadata_resolver.ts:620)
at Array.forEach ()
at CompileMetadataResolver.getNgModuleMetadata (metadata_resolver.ts:600)
at JitCompiler.loadModules (compiler.ts:127)
at JitCompiler.compileModuleAndComponents (compiler.ts:107)
at JitCompiler.compileModuleAsync (compiler.ts:61)
at CompilerImpl.compileModuleAsync (compiler_factory.ts:57)
at compileNgModuleFactory__PRE_R3 (application_ref.ts:43)
at PlatformRef.bootstrapModule (application_ref.ts:262) Error: Unexpected value 'JokeListComponent' declared by the module 'AppModule'. Please add a @Pipe/@Directive/@component annotation.
at syntaxError (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:2500:21)
at eval (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:18757:44)
at Array.forEach ()
at CompileMetadataResolver.getNgModuleMetadata (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:18739:58)
at JitCompiler.loadModules (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:26085:55)
at JitCompiler.compileModuleAndComponents (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:26066:40)
at JitCompiler.compileModuleAsync (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/compiler@7.2.15/bundles/compiler.umd.js:26026:41)
at CompilerImpl.compileModuleAsync (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/platform-browser-dynamic@7.2.15/bundles/platform-browser-dynamic.umd.js:202:35)
at compileNgModuleFactory__PRE_R3 (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/core@7.2.15/bundles/core.umd.js:17664:25)
at PlatformRef.bootstrapModule (https://github-g2mxbh.stackblitz.io/turbo_modules/@angular/core@7.2.15/bundles/core.umd.js:17847:20)