bumptech/glide · error · IllegalStateException

Package name for {source} is null or empty

Error message

Package name for {source} is null or empty

What it means

IllegalStateException thrown by ResourceDrawableDecoder.decode() when source.getAuthority() returns null or empty. The authority segment of an android.resource:// URI must contain the target package name so Glide can locate the resources.

Source

Thrown at library/src/main/java/com/bumptech/glide/load/resource/drawable/ResourceDrawableDecoder.java:75

  private final Context context;

  public ResourceDrawableDecoder(Context context) {
    this.context = context.getApplicationContext();
  }

  @Override
  public boolean handles(@NonNull Uri source, @NonNull Options options) {
    String scheme = source.getScheme();
    return scheme != null && scheme.equals(ContentResolver.SCHEME_ANDROID_RESOURCE);
  }

  @Nullable
  @Override
  public Resource<Drawable> decode(
      @NonNull Uri source, int width, int height, @NonNull Options options) {
    String packageName = source.getAuthority();
    if (TextUtils.isEmpty(packageName)) {
      throw new IllegalStateException("Package name for " + source + " is null or empty");
    }
    Context targetContext = findContextForPackage(source, packageName);
    @DrawableRes int resId = findResourceIdFromUri(targetContext, source);
    // Only use the provided theme if we're loading resources from our package. We can't get themes
    // from other packages and we don't want to use a theme from our package when loading another
    // package's resources.
    Theme theme =
        Preconditions.checkNotNull(packageName).equals(context.getPackageName())
            ? options.get(THEME)
            : null;
    Drawable drawable =
        theme == null
            ? DrawableDecoderCompat.getDrawable(context, targetContext, resId)
            : DrawableDecoderCompat.getDrawable(context, resId, theme);
    return NonOwnedDrawableResource.newInstance(drawable);
  }

  @NonNull

View on GitHub (pinned to eb14a895d8)

Solutions

1. Build resource Uris with the documented form: android.resource://<package>/<type>/<name> or android.resource://<package>/<resId>.
2. Use ResourceLoader or the integer-resId overload of Glide (Glide.with(ctx).load(R.drawable.foo)) instead of hand-building Uris.
3. Validate Uri authority before passing to Glide.

Example fix

// before
Uri uri = Uri.parse("android.resource/" + resId); // missing authority
Glide.with(ctx).load(uri).into(img);
// after
Uri uri = Uri.parse("android.resource://" + ctx.getPackageName() + "/" + resId);
Glide.with(ctx).load(uri).into(img);

// Validate Uri authority before loading.
Uri uri = ...;
if (uri == null || TextUtils.isEmpty(uri.getAuthority())
    || !"android.resource".equals(uri.getScheme())) {
  // reject or build a valid Uri
  uri = Uri.parse("android.resource://" + ctx.getPackageName() + "/" + resId);
}
Glide.with(ctx).load(uri).into(img);

When it happens

Trigger: Constructing a Uri with scheme android.resource but a null/empty authority, e.g. Uri.parse("android.resource://"), or building a Uri via Uri.Builder() without calling .authority().

Common situations: Programmatically building a resource Uri and forgetting the package. Passing a malformed string to Uri.parse(). Stripping the authority during Uri manipulation.

Related errors

• Unrecognized Uri format: {source}
• Failed to find resource id for: {source}
• Failed to obtain context or unrecognized Uri format for: {so
• Loop count must be greater than 0, or equal to GlideDrawable
• Cannot apply transformation on width: {outWidth} or height:

AI-assisted analysis of bumptech/glide@eb14a895d8 (2026-08-14). Data as JSON: /api/errors/e5f14a24604100db. Report an issue: GitHub.