MaterialTopTabNavigator warning on 'bounces' prop of AndroidPager

[ElChurros]

Current Behavior

I am running a very simple mobile application in which i am using a MaterialTopTabNavigator to navigate between 3 different screens.
When testing on iOS, the application runs without any warning. On Android, a warning is displayed in the emulator indicating :
Warning: Failed prop type: The prop 'bounces' is marked as required in 'PagerAndroid', but it's value is 'undefined'.

Here is a screenshot of the complete warning message :

Expected Behavior

Of course I would expect it to run without any warnings.

How to reproduce

Here is an example app that generates this warning :

https://github.com/ElChurros/TabNavigatorIssue.git

To reproduce the warning :

• clone the repository
• navigate to the cloned repo
• run npm install
• launch an Android emulator
• run react-native run-android

Your Environment

software	version
react-navigation	"^3.9.2"
react-native	"0.59.8"
node	v12.2.0
npm or yarn	6.9.0

[chohonest]

I am having this exact warning.

[brentvatne]

cc @satya164

[spyshower]

I see this got closed, but for me the error is not fixed. I get this error for PagerPan instead of PagerAndroid though.

[vizfiz]

Found the root of this under

react-native-tab-view --> src folder --> PropTypes line 43, bounces: PropTypes.bool.isRequired

I removed the .isRequired. Doesn't seem like it should be a required prop

Yet to uncover what impact this has upstream in react navigation...

[Abdalmajid]

Found the root of this under

react-native-tab-view --> src folder --> PropTypes line 43, bounces: PropTypes.bool.isRequired

I removed the .isRequired. Doesn't seem like it should be a required prop

Yet to uncover what impact this has upstream in react navigation...

this fix the issue, Thanks

[satya164]

Please upgrade your react-navigation version. The line isn't there.

[ElChurros]

Please upgrade your react-navigation version. The line isn't there.

Hi, I did, but the warning remains with react-navigation 3.11.0. Tried in both my app and my minimal example.

[satya164]

try deleting your node_modules and install again and clear metro cache with react-native start --reset-cache. the latest version doesn't even have this line in PagerPan or PagerAndroid, so it's not possible for it to show a warning.

[ElChurros]

@satya164 Perfect the reset-cache was the trick. Thank you for the quick fix on this issue.

[hadpro24]

@satya164 thank you, it's works.