React-native-track-player: Cannot read property 'STATE_NONE' of undefined

[gurtajkhatra]

I'm getting the following error when trying to import this library:"Cannot read property 'STATE_NONE' of undefined". It appears to be happening in "index.js" at line 94: module.exports.STATE_NONE = TrackPlayer.STATE_NONE;, and TrackPlayer is undefined.

I've tried uninstalling all my modules and reinstalling, and unlinking and linking. Any idea what is going on? This is on iOS by the way.

[Guichaguri]

Which version of React Native are you using?
Also, which version of this module are you using?

[gurtajkhatra]

React Native v0.49.5
[email protected]

[gurtajkhatra]

I just upgraded react native to v0.50.4, and am getting the same error, but now I'm getting this extra error info in the terminal after I run react-native run-ios:

/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:48:19: error: overriding method with selector 'constantsToExport' has incompatible type '() -> [String : Any]'
    override func constantsToExport() -> [String: Any] {
                  ^
__ObjC.RCTEventEmitter:79:15: note: overridden declaration here has type '() -> [AnyHashable : Any]!'
    open func constantsToExport() -> [AnyHashable : Any]!
              ^
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:30:22: warning: expression implicitly coerced from 'String?' to Any
            "track": trackId,
                     ^~~~~~~
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:30:22: note: provide a default value to avoid this warning
            "track": trackId,
                     ^~~~~~~
                             ?? <#default value#>
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:30:22: note: force-unwrap the value to avoid this warning
            "track": trackId,
                     ^~~~~~~
                            !
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:30:22: note: explicitly cast to Any with 'as Any' to silence this warning
            "track": trackId,
                     ^~~~~~~
                             as Any
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:31:25: warning: expression implicitly coerced from 'TimeInterval?' (aka 'Optional<Double>') to Any
            "position": time,
                        ^~~~
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:31:25: note: provide a default value to avoid this warning
            "position": time,
                        ^~~~
                             ?? <#default value#>
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:31:25: note: force-unwrap the value to avoid this warning
            "position": time,
                        ^~~~
                            !
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:31:25: note: explicitly cast to Any with 'as Any' to silence this warning
            "position": time,
                        ^~~~
                             as Any
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:32:26: warning: expression implicitly coerced from 'String?' to Any
            "nextTrack": nextTrackId
                         ^~~~~~~~~~~
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:32:26: note: provide a default value to avoid this warning
            "nextTrack": nextTrackId
                         ^~~~~~~~~~~
                                     ?? <#default value#>
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:32:26: note: force-unwrap the value to avoid this warning
            "nextTrack": nextTrackId
                         ^~~~~~~~~~~
                                    !
/Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift:32:26: note: explicitly cast to Any with 'as Any' to silence this warning
            "nextTrack": nextTrackId
                         ^~~~~~~~~~~
                                     as Any



** BUILD FAILED **


The following build commands failed:

    CompileSwift normal x86_64 /Users/Gurtaj/Dropbox/SocialPodcast/PodcastApp/node_modules/react-native-track-player/ios/RNTrackPlayer/RNTrackPlayer.swift
    CompileSwiftSources normal x86_64 com.apple.xcode.tools.swift.compiler
(2 failures)

[dcvz]

This issue has been fixed on the develop branch but we have not yet published a new version to npm with these fixes. /cc @Guichaguri

[gurtajkhatra]

Sounds good! Thanks for the response

[joserocha3]

@Guichaguri Hi, any update on this? I tried the latest version and the dev branch and receive the STATE_NONE error. I am using react-native 0.51.0 and building for iOS. Thanks!

[chrisbendel]

@joserocha3 noticed we had a similar problem. I figured this one out on my own earlier

Not sure if you've done the 'add a .swift file to your project' in the docs but if not then try that step first
1) https://github.com/react-native-kit/react-native-track-player/wiki/Installation#troubleshooting

Second, which after I did that myself I still had an issue - check my comment on this other issue and try manually linking the react-native-track-player library using the steps i posted.
2) https://github.com/react-native-kit/react-native-track-player/issues/96#issuecomment-352440855

Hopefully it works out for you

[RassaLibre]

Had the same problem (RN 0.48, react-native-track-player v0.2.1) and managed to fix this by manually linking the library. You know, the usual- move the .a file to Link Binaries with Library.

[ryekerjh]

I am having this same issue and I have done everything suggested here. I am running a detached expo project, I ran the step-by-step install process as outlined in the API docs, and I added a dummy.swift file and enabled the bridging header option in xCode. Still getting this issue. I am running react-native v0.55.3 react-native-track-player v0.2.4. Any help would be SUPER appreciated.