Undefined appVersion on Android crashes app

[sbehrends]

While implementing this package in Android I am having an issue while importing the module.

As soon as the module is added to the view I get that appVersion is not an object.

[quintonn]

same for me.
I ran "react-native link" and then react-native run-android and it worked

[Martin25699]

same problem

[sbehrends]

Tried to fix it myself, but could not do it.
I confirm that the package is proper linked, react-native link was executed and the package appears on Android Studio as part of the project.

This code does something really similar. Still cannot make it work :(
https://github.com/kimxogus/react-native-version-check/blob/master/packages/react-native-version-check/android/src/main/java/io/xogus/reactnative/versioncheck/RNVersionCheckModule.java

[gomdolkim]

same problem

[gomdolkim]

Actually, I tried to fix it and failed. I wanted to get build number and app version.
If you still struggle with it, with alternative way you can use react-native-device-info.
https://github.com/rebeccahughes/react-native-device-info

import DeviceInfo from 'react-native-device-info';
DeviceInfo.getVersion()
DeviceInfo.getBuildNumber()

[alvaromb]

Can you give us a repro example?

[nitish24p]

@sbehrends sometimes

react-native link

doesn't link all the dependencies correctly can you check if in your MainApplication.java you have the following lines

import com.apsl.versionnumber.RNVersionNumberPackage; //  <-- This Line

  // @NonNull
  @Override
  public List<ReactPackage> createAdditionalReactPackages() {
    // Add the packages you require here.
    // No need to add RnnPackage and MainReactPackage
    return Arrays.<ReactPackage>asList(
            Other Packages here,
            new RNVersionNumberPackage() //  <- This line
    );
  }

[nitish24p]

@alvaromb for the above mentioned issue, it got fixed as react-native link hadn't linked the dependencies correctly. In your README you can give a section for install manually.. I can give a PR if that's ok..

[alvaromb]

Sure @nitish24p!

That would be very nice.