isMounted(...) is deprecated warning

[jsina]

I've get an "isMounted(...) is deprecated in plain javascript react classes" error with this dependencies, I wanna know that is there any problem with react-navigation with with "react": "16.3.1", or not?

  "dependencies": {
    "prop-types": "^15.6.1",
    "react": "16.3.1",
    "react-native": "0.55.2",
    "react-navigation": "^1.5.11"
  },

[codler]

I get the same warning after upgrading to react native 0.55.2

[jsina]

@codler I think it's for some changing in new version of react. I've find the link below. but the problem is for react-navigation api, because it's used some deprecated method.
https://medium.com/@baphemot/whats-new-in-react-16-3-d2c9b7b6193b

[kk412027247]

I also get the same warning, still can't fix it

[Ayyagaries]

Same here this is what I see

[Matgsan]

Same problem here

[kk412027247]

I add this code to index.js, so that i can ignore this warnning.

import { YellowBox } from 'react-native';
YellowBox.ignoreWarnings(['Warning: isMounted(...) is deprecated', 'Module RCTImageLoader']);

[hhw3KevinHou]

I got this too, and searched whole react-navigation in node_modules did not find 'isMounted()'. Weird.

[Rah1x]

any solution?!!

[Rah1x]

@hhw3KevinHou

[Rah1x]

If you look at this entry, it was indicative enough that its going away since 2015!!. and here we are in 2018 still using it:
moreartyjs/moreartyjs#84

[hhw3KevinHou]

@Rah1x looks like isMounted() is not in react-navigation directory.

[Rah1x]

@hhw3KevinHou
true, however this issue only came just right now as I updated react-navigation of a fine app

[derekbar90]

I can confirm this issue as well.

[Rah1x]

I just followed @kk412027247 and ignored it.. not that doesnt solve the issue

[PanRada]

have same happend on new app

[JeremyBradshaw7]

Getting the same after upgrading to RN 0.55.2

[allanleonardjr]

Same issue here. I followed the instructions offered by @kk412027247 in order to ignore the warning messages.

[mechanizzed]

Same issue here

"react": "16.3.1", "react-native": "0.55.2",

[MahbbRah]

Same issue....

"react": "16.3.1", "react-native": "0.55.2",

[didiercapozzi]

Same here,

"react": "16.3.1", "react-native": "0.55.2",

[jsina]

@kk412027247 approach is temporary. hope to be fixed for next version.

[mateoguzmana]

Same issue here
"react": "^16.2.0", "react-native": "^0.55.2"

[bcbee]

Same issue here "react": "16.3.1", "react-native": "0.55.2", "react-navigation": "^1.5.11",

[bcbee]

Can confirm this is either a bug with react-navigation, or react-navigation precipitates this bug in one of its dependencies. I created a new project and added steps to reproduction: https://github.com/brendancboyle/react-navigation-bug-3956

[TitusEfferian]

same here "react-native": "0.55.2", "react-navigation": "^1.5.11",

[charleycesar]

same here "react-native": "0.55.2"

[qhkm]

same here "react-native": "0.55.2"

[buzzer-re]

same here "react-native": "0.55.2"

[alisafariir]

how to fix this?
i've update components with npm install
my dependencies is :

{
    "react": "^16.3.1",
    "react-native": "^0.55.2",
    "react-native-vector-icons": "^4.6.0",
    "react-navigation": "^1.5.11"
}

[MultidimensionalLife]

I have the same issue. Any fix for this?

Environment:
OS: macOS Sierra 10.12.6
Node: 6.11.1
Yarn: Not Found
npm: 3.10.10
Watchman: 4.9.0
Xcode: Xcode 9.2 Build version 9C40b
Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed)
react: ^16.3.0-alpha.1 => 16.3.0-alpha.1
react-native: ^0.55.2 => 0.55.2

[RomanISWG]

Same issue here.
RN 0.55.2,
React 16.3.1,
React Navigation 1.5.11

[TheGreatAndrew]

wow just in 6 days and there are that much people having same issues.
Btw, same issue here.

[brentvatne]

hello! I am on vacation and this is not an urgent issue @TheGreatAndrew - it is a warning that you can happily ignore or filter out from the yellowbox. I can address it when I'm back next week, or someone else can do it before then

[TheGreatAndrew]

naw, i did not complain, just feeling suprise. Really great library you have it there.

[brentvatne]

:)

[feroce92]

~ node_modules/react-native/Libraries/Renderer/ReactNativeRenderer-dev.js
3518, 3519 line change

[zhaiduo]

When I put drawerNavigation in tabNavigation, same YellowBox alert.
RN 0.55.2,
React 16.3.1,
React Navigation 1.5.8

[bingfeng1225]

same here
"react": "16.3.1",
"react-native": "0.55.2",
"react-native-root-toast": "^3.0.1",
"react-navigation": "^1.5.11"

[TPXP]

Guys I think the maintainers have enough data about this bug, could you stop posting "me too" comments which generates tons of notifications ? If you have the same problem, just put a 👍 to the first comment and subscribe to notifications 😉

[brentvatne]

react-navigation does not use isMounted(), this is coming from somewhere inside react-native itself