# Ionic Capacitor Firebase Auth Get Error

**URL:** <https://forum.ionicframework.com/t/ionic-capacitor-firebase-auth-get-error/174744>\
**Category:** Capacitor\
**Created:** [October 3, 2019, 6:05am UTC](https://forum.ionicframework.com/t/ionic-capacitor-firebase-auth-get-error/174744 "2019-10-03T06:05:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![lalitkumarbaghel](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/lalitkumarbaghel/32/128826_2.png) [@lalitkumarbaghel](https://forum.ionicframework.com/u/lalitkumarbaghel)\
**Post date:** [October 3, 2019, 6:05am UTC](https://forum.ionicframework.com/t/ionic-capacitor-firebase-auth-get-error/174744/1 "2019-10-03T06:05:31Z")

</div>

I follow the document of [capacitor-firebase-auth](http://www.expertsuggestion.com/) but i got [this error](http://www.expertsuggestion.com/)

> **[capacitor-firebase-auth](https://www.npmjs.com/package/capacitor-firebase-auth)**
>
> Capacitor plugin for Firebase Authentication

```auto
vendor-es2015.js:46777 ERROR TypeError: Cannot read property 'signIn' of undefined
    at Observable.rxjs __WEBPACK_IMPORTED_MODULE_3__.Observable.observer [as _subscribe] (pages-login-login-module-es2015.js:2765)
    at Observable._trySubscribe (vendor-es2015.js:159107)
    at Observable.subscribe (vendor-es2015.js:159093)
    at LoginPage.gooogleloginAction (pages-login-login-module-es2015.js:5746)
    at Object.eval [as handleEvent] (LoginPage.html:39)
    at handleEvent (vendor-es2015.js:75765)
    at callWithDebugContext (vendor-es2015.js:77383)
    at Object.debugHandleEvent [as handleEvent] (vendor-es2015.js:77019)
    at dispatchEvent (vendor-es2015.js:63485)
    at vendor-es2015.js:74697
defaultErrorLogger @ vendor-es2015.js:46777
handleError @ vendor-es2015.js:46829
next @ vendor-es2015.js:72582
schedulerFn.__isAsync @ vendor-es2015.js:68718
__tryOrUnsub @ vendor-es2015.js:159785
next @ vendor-es2015.js:159724
_next @ vendor-es2015.js:159674
next @ vendor-es2015.js:159651
next @ vendor-es2015.js:159437
emit @ vendor-es2015.js:68680
zone.runOutsideAngular @ vendor-es2015.js:71907
invoke @ polyfills-es2015.js:3365
run @ polyfills-es2015.js:3130
runOutsideAngular @ vendor-es2015.js:71794
onHandleError @ vendor-es2015.js:71904
handleError @ polyfills-es2015.js:3369
runTask @ polyfills-es2015.js:3177
invokeTask @ polyfills-es2015.js:3471
ZoneTask.invoke @ polyfills-es2015.js:3460
timer @ polyfills-es2015.js:5656
setTimeout (async)
scheduleTask @ polyfills-es2015.js:5677
scheduleTask @ polyfills-es2015.js:3384
onScheduleTask @ polyfills-es2015.js:3278
scheduleTask @ polyfills-es2015.js:3378
scheduleTask @ polyfills-es2015.js:3217
scheduleMacroTask @ polyfills-es2015.js:3240
scheduleMacroTaskWithCurrentZone @ polyfills-es2015.js:4113
(anonymous) @ polyfills-es2015.js:5692
proto.(anonymous function) @ polyfills-es2015.js:4434
hostReportError @ vendor-es2015.js:168693
error @ vendor-es2015.js:159758
_error @ vendor-es2015.js:159677
error @ vendor-es2015.js:159657
_trySubscribe @ vendor-es2015.js:159115
subscribe @ vendor-es2015.js:159093
gooogleloginAction @ pages-login-login-module-es2015.js:5746
(anonymous) @ LoginPage.html:39
handleEvent @ vendor-es2015.js:75765
callWithDebugContext @ vendor-es2015.js:77383
debugHandleEvent @ vendor-es2015.js:77019
dispatchEvent @ vendor-es2015.js:63485
(anonymous) @ vendor-es2015.js:74697
(anonymous) @ vendor-es2015.js:89242
invokeTask @ polyfills-es2015.js:3397
onInvokeTask @ vendor-es2015.js:71849
invokeTask @ polyfills-es2015.js:3396
runTask @ polyfills-es2015.js:3174
invokeTask @ polyfills-es2015.js:3471
invokeTask @ polyfills-es2015.js:4609
globalZoneAwareCallback @ polyfills-es2015.js:4635

```

---

<div class="post-metadata">

**Author:** ![kelpie278](https://avatars.discourse-cdn.com/v4/letter/k/848f3c/32.png) [@kelpie278](https://forum.ionicframework.com/u/kelpie278)\
**Post date:** [August 18, 2020, 2:16pm UTC](https://forum.ionicframework.com/t/ionic-capacitor-firebase-auth-get-error/174744/2 "2020-08-18T14:16:53Z")

</div>

Hi, you don´t need a plugin for that, check this tutorial.

> **[Anonymous Authentication with Firebase in your Ionic 5 App.](https://medium.com/@alejandrolp1986/anonymous-authentication-with-firebase-in-your-ionic-5-app-fd8113ce7adc?source=social.tw)**
>
> Let’s admit it, the major part of the Apps users run away from a login screen, no matter how good, how beautiful or how amazing the Sign…