microg/GmsCore · error · IllegalArgumentException

No frame supplied.

Error message

No frame supplied.

What it means

BarcodeDetector.detect(Frame) requires a frame to analyze: a null Frame argument fails the Preconditions.checkNotNull check and throws IllegalArgumentException with this message before barcode recognition runs.

Source

Thrown at play-services-vision/src/main/java/com/google/android/gms/vision/barcode/BarcodeDetector.java:46

 * <p>
 * Recognition results are returned by {@link #detect(Frame)} as Barcode instances.
 */
@PublicApi
public class BarcodeDetector extends Detector<Barcode> {
    private INativeBarcodeDetector remote;

    private BarcodeDetector(INativeBarcodeDetector remote) {
        this.remote = remote;
    }

    /**
     * Recognizes barcodes in the supplied {@link Frame}.
     *
     * @return mapping of int to {@link Barcode}, where the int domain represents an opaque ID for the barcode. Identical barcodes (as determined by their raw value) will have the same ID across frames.
     */
    @Override
    public SparseArray<Barcode> detect(Frame frame) {
        if (frame == null) throw new IllegalArgumentException("No frame supplied.");
        SparseArray<Barcode> result = new SparseArray<>();
        if (remote != null) {
            FrameMetadataParcel metadataParcel = frame.getMetadata().createParcel();
            Barcode[] barcodes = null;
            if (frame.getBitmap() != null) {
                try {
                    barcodes = remote.detectBitmap(ObjectWrapper.wrap(frame.getBitmap()), metadataParcel);
                } catch (RemoteException e) {
                    // Ignore
                }
            } else {
                try {
                    barcodes = remote.detectBytes(ObjectWrapper.wrap(frame.getGrayscaleImageData()), metadataParcel);
                } catch (RemoteException e) {
                    // Ignore
                }
            }
            if (barcodes != null) {

View on GitHub (pinned to 157c9d86ac)

Solutions

1. Null-check the Frame before calling detect()
2. Skip detection when the camera/callback produced no frame

When it happens

Trigger: Thrown at play-services-vision/src/main/java/com/google/android/gms/vision/barcode/BarcodeDetector.java:46 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microg/GmsCore@157c9d86ac (2026-09-06). Data as JSON: /api/errors/822957fae2e4be76. Report an issue: GitHub.