anchor.diff:  
     static final GlbError unexpectedFirstChunk = new GlbError._(
         'GLB_UNEXPECTED_FIRST_CHUNK',
  -      (args) => 'First chunk must be of JSON type. Got ${args[0]} instead.');
  +      (args) => 'First chunk must be of JSON type. Found ${args[0]} instead.');
   
     static final GlbError unknownChunkType = new GlbError._(
         'GLB_UNKNOWN_CHUNK_TYPE',
  
positive.code:       (args) => 'Invalid URI ${args[0]}. Parser output: ${args[1]}');
  
    static final SchemaError emptyEntity =
        new SchemaError._('EMPTY_ENTITY', (args) => 'Entity can not be empty.');
  
    static final SchemaError oneOfMismatch = new SchemaError._('ONE_OF_MISMATCH',
        (args) => 'Exactly one of ${args.map(_q)} properties must be defined.');
  
negative.code:       'NODE_MATRIX_NON_TRS', (args) => 'Matrix must be decomposable to TRS.');
  
    static final SemanticError nodeRotationNonUnit = new SemanticError._(
        'NODE_ROTATION_NON_UNIT', (args) => 'Rotation quaternion must be normalized.');
  
    static final SemanticError unusedExtensionRequired = new SemanticError._(
        'UNUSED_EXTENSION_REQUIRED',
        (args) => 'Unused extension ${_q(args[0])} cannot be required.');
  
    static final SemanticError nodeEmpty = new SemanticError._(
        'NODE_EMPTY', (args) => 'Empty node encountered.', Severity.Information);
  