DavideViolante/Angular-Full-Stack

NullInjectorError: No provider for JwtHelperService!

Anil-bohorya opened this issue · 4 comments

Anil-bohorya commented

Getting error in auth.service.ts

Error: StaticInjectorError(AppModule)[AuthService -> JwtHelperService]: 
  StaticInjectorError(Platform: core)[AuthService -> JwtHelperService]: 
    NullInjectorError: No provider for JwtHelperService!
    at _NullInjector.get (core.js:994)
    at resolveToken (core.js:1292)
    at tryResolveToken (core.js:1234)
    at StaticInjector.get (core.js:1102)
    at resolveToken (core.js:1292)
    at tryResolveToken (core.js:1234)
    at StaticInjector.get (core.js:1102)
    at resolveNgModuleDep (core.js:10836)
    at _createClass (core.js:10881)
    at _createProviderInstance$1 (core.js:10847)
dougal83 commented

Only issue I can spot is that HttpClientModule is not imported as per the usage notes.

Not sure if JwtHelper being private will cause this issue though. It is public on the example by module author.

  • 👍1
timelf123 commented

Looks like it was removed here b025cf9 because it was not being used after imported.

My working config includes this:

HttpClientModule,
    JwtModule.forRoot({
      config: {
        tokenGetter: tokenGetter ...
  • 👍1
DavideViolante commented

When do you receive this error? I cannot reproduce it neither in dev nor prod.
I only found this: https://stackoverflow.com/questions/44675373/error-error-no-provider-for-jwthelper

  • 👍1
Anil-bohorya commented

It is working Fine now.. I have taken fresh pull and installed. There are few changes in auth service and now JwtHelperService is replaced with JwtModule.

Thank you guys for all your valuable comments.