127.0.0.1/:16 Error: (SystemJS) Unexpected value 'FrameworkService' imported by the module 'ExchangeModule'
    Error: Unexpected value 'FrameworkService' imported by the module 'ExchangeModule'
        at eval (http://127.0.0.1:8080/node_modules/@angular/compiler/bundles/compiler.umd.js:13982:37)
        at Array.forEach (native)
        at CompileMetadataResolver.getNgModuleMetadata (http://127.0.0.1:8080/node_modules/@angular/compiler/bundles/compiler.umd.js:13967:46)
        at RuntimeCompiler._compileComponents (http://127.0.0.1:8080/node_modules/@angular/compiler/bundles/compiler.umd.js:16688:49)
        at RuntimeCompiler._compileModuleAndComponents (http://127.0.0.1:8080/node_modules/@angular/compiler/bundles/compiler.umd.js:16626:39)
        at RuntimeCompiler.compileModuleAsync (http://127.0.0.1:8080/node_modules/@angular/compiler/bundles/compiler.umd.js:16617:23)
        at PlatformRef_._bootstrapModuleWithZone (http://127.0.0.1:8080/node_modules/@angular/core/bundles/core.umd.js:6868:29)
        at PlatformRef_.bootstrapModule (http://127.0.0.1:8080/node_modules/@angular/core/bundles/core.umd.js:6850:25)
        at Object.eval (http://127.0.0.1:8080/app/main.js:6:10)
        at eval (http://127.0.0.1:8080/app/main.js:9:4)
    Evaluating http://127.0.0.1:8080/app/main.js
    Error loading http://127.0.0.1:8080/app/main.js