Platform: store,select("state").subscribe() return undefined subscription

[giridharprakash]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[X ] Bug report  
[ ] Feature request
[ ] Documentation issue or request

What is the current behavior?

let adminState = this.store.select("admin").subscribe(a => {
adminState.unsubscribe();
if (a.fileTypes)
{
//login here
}
});

Expected behavior:

adminState should have subscription object instead of undefined

Version of affected browser(s),operating system(s), npm, node and ngrx:

"@ngrx/store": "^4.0.3",
"@ngrx/effects": "^4.0.5",
"rxjs": "5.4.3",
"@angular/common": "4.4.4",
"ionic-angular": "3.7.1"

[brandonroberts]

This is most likely a bug in the way your state is set up. Please use the chat room for support. https://gitter.im/ngrx/platform