[x] bug report => search github for a similar issue or PR before submitting
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question

Unhandled Promise rejection: Cannot convert undefined or null to object ; Zone: <root> ; Task: Promise.then ; Value: TypeError: Cannot convert undefined or null to object
    at Function.getPrototypeOf (<anonymous>)
    at getParentCtor (reflection_capabilities.ts:324)
    at ReflectionCapabilities.parameters (reflection_capabilities.ts:115)
    at Reflector.parameters (reflector.ts:42)
    at CompileMetadataResolver._getDependenciesMetadata (metadata_resolver.js:794)
    at CompileMetadataResolver._getFactoryMetadata (metadata_resolver.js:729)
    at CompileMetadataResolver.getProviderMetadata (metadata_resolver.js:1001)
    at JitCompiler._compileModule (compiler.js:172)
    at createResult (compiler.js:116)
    at ZoneDelegate.invoke (zone.js:334)
    at Zone.run (zone.js:126)
    at zone.js:713
    at ZoneDelegate.invokeTask (zone.js:367)
    at Zone.runTask (zone.js:166)
    at drainMicroTaskQueue (zone.js:546) TypeError: Cannot convert undefined or null to object
    at Function.getPrototypeOf (<anonymous>)
    at getParentCtor (http://localhost:4200/vendor.bundle.js:2414:49)
    at ReflectionCapabilities.parameters (http://localhost:4200/vendor.bundle.js:2234:45)
    at Reflector.parameters (http://localhost:4200/vendor.bundle.js:2496:44)
    at CompileMetadataResolver._getDependenciesMetadata (http://localhost:4200/vendor.bundle.js:40117:73)
    at CompileMetadataResolver._getFactoryMetadata (http://localhost:4200/vendor.bundle.js:40056:51)
    at CompileMetadataResolver.getProviderMetadata (http://localhost:4200/vendor.bundle.js:40324:43)
    at JitCompiler._compileModule (http://localhost:4200/vendor.bundle.js:50248:77)
    at createResult (http://localhost:4200/vendor.bundle.js:50192:25)
    at ZoneDelegate.invoke (http://localhost:4200/polyfills.bundle.js:2970:26)
    at Zone.run (http://localhost:4200/polyfills.bundle.js:2762:43)
    at http://localhost:4200/polyfills.bundle.js:3349:57
    at ZoneDelegate.invokeTask (http://localhost:4200/polyfills.bundle.js:3003:31)
    at Zone.runTask (http://localhost:4200/polyfills.bundle.js:2802:47)
    at drainMicroTaskQueue (http://localhost:4200/polyfills.bundle.js:3182:35)