CRNA Android App crashing with java.lang.ClassNotFoundException: abi23.0.0.com.facebook.soloader.SoLoader

Expo SDK
1

I used CRNA to generate a mobile app, which works fine on iOS devices and the Genymotion android emulator. However it crashes on every Android device I’ve tried it on.

I believe this is the error message accompanying the crash:

E/h       (12916): java.lang.ClassNotFoundException: abi23_0_0.com.facebook.soloader.SoLoader
E/h       (12916): Runtime exception in RNObject when calling method init: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang
.reflect.Method[] java.lang.Class.getMethods()' on a null object reference
E/j       (12916): java.lang.NoSuchFieldException: numActivities

There’s some broader context here. I’m on SDK 23.0.0, React Native 0.50.3. The Android version this is failing on include: 5.1.1, 7.0, and 7.1.1. My package.json.

I think this error is happening when I’m loading a JSON file from the filesystem which has a Base64 encoded image inside it. That image is then sent up to a server. I have not been able to figure out which line of code the error happens on, because the error does not happen when I run it in an emulator (where I can set breakpoints).

Here’s the portion of code where I believe the error is coming from:

    console.log('About to pull file from FS....');
    // Use Expo FileSystem to get JSON file with base64 image inside
    const imgString: string = await FileSystem.readAsStringAsync(
        picture.localUri   // Uri to JSON file
    );
    console.log('File successfully pulled from fs');
    console.log('About to parse json ....');
    const imgJson = JSON.parse(imgString);
    console.log('Json successfully parsed');
    try {
        console.log('Sending response ....');
        // Uses feathers-client to talk to server
        const response: {path: remoteUri} = await pictureService.create({
            uri: imgJson.base64,  // Should be base64 encoded image
            exif: imgJson.exif,
            extension: imgJson.extension,
            inspectionId,              // String in scope but not in excerpt
            passcode                   // String in scope but not in excerpt
        });
        console.log('Pictures sent to server! Response: ', response);
        // Register remote uri on pic
        return await dispatch(logPictureUpload(
            inspectionId,
            picture.localUri,
            response.path
        ));
    } catch (e) {
        const error = await e;
        console.error('Error: Sending picture up to server', error);
    }

Any pointers on how to better debug this would be helpful. Again, this doesn’t happen in the Genymotion emulator or iOS devices.

2

Are you trying this on developer devices? Do you have the ‘Don’t keep activities’ setting on?

3

Edgar:

Figured it out. The file size that was going up to the server was too large. Increased the server’s max file size, and it was fixed.

I was able to catch the promise reject and pass the error to console.error. Using adb logcat, the error shows up as:

E/ReactNativeJS(12916): 'Error: Sending picture up to server', [GeneralError: request entity too large]

The reason the error was only thrown on the android devices is that the filesize for the pictures was larger. :slight_smile:

4

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