text: class CompressorError(Exception):
      """
      A general error of the compressor
      """
      pass
  
  class UncompressableFileError(Exception):
      """
      This exception is raised when a file cannot be compressed
      """
      pass
  
  
  class FilterError(Exception):
      """
      This exception is raised when a filter fails
      """
      pass
  
  
  class ParserError(Exception):
      """
      This exception is raised when the parser fails
      """
      pass
  
  
  class OfflineGenerationError(Exception):
      """
      Offline compression generation related exceptions
      """
      pass
  