[1.5.0-rc.5] Failing to Load the Page when doing an Ng Serve

[ghost]

Bug Report or Feature Request (mark with an x)

- [x] bug report 
- [ ] feature request

Versions.

@angular/cli: 1.5.0-rc.5
node: 6.9.4
os: darwin x64
@angular/animations: 4.4.6
@angular/common: 4.4.6
@angular/compiler: 4.4.6
@angular/core: 4.4.6
@angular/forms: 4.4.6
@angular/http: 4.4.6
@angular/platform-browser: 4.4.6
@angular/platform-browser-dynamic: 4.4.6
@angular/router: 4.4.6
@angular/cli: 1.4.9
@angular/compiler-cli: 4.4.6
typescript: 2.4.2

Issue

I am currently trying to build my project which is using ES6. I had trouble using angular-cli/1.4.9 when attempting to run a prod build due to Uglify-Es so I upgraded to the beta version but now ng serve seems to fail with error:

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)

Running the ng serve with AOT seems to make it successful but I am unable to develop in AOT due to JavaScript Heap Memory errors which is another unrelated issue.

It seems to be only with JIT Compilation. Going back to 1.4.9 makes my project's ng serve work perfectly but the production build fail (due to the Uglify-es).

[filipesilva]

Thanks for reporting this issue. However, this issue is a duplicate of an existing issue #7797. Please subscribe to that issue for future updates.

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