Make sure to provide the MSAL Config in your app module, e.g.

providers: [

{

provide: HTTP_INTERCEPTORS,

useClass: MsalInterceptor,

multi: true

},

{

provide: MSAL_CONFIG,

useFactory: MSALConfigFactory

},

{

provide: MSAL_CONFIG_ANGULAR,

useFactory: MSALAngularConfigFactory

},

MsalService

]