error

turn self.main(*args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 680, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 873, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 508, in invoke
    return callback(*args, **kwargs)
  File "/home/gaz/.local/lib/python3.4/site-packages/libgrabsite/main.py", line 284, in main
    wpull.__main__.main()
  File "/usr/local/lib/python3.4/dist-packages/wpull/__main__.py", line 29, in main
    builder.build()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 230, in build
    processor = self._build_processor()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 854, in _build_processor
    web_processor = self._build_web_processor()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 866, in _build_web_processor
    web_client = self._build_web_client()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 1230, in _build_web_client
    http_client = self._build_http_client()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 1214, in _build_http_client
    recorder = self._build_recorder()
  File "/usr/local/lib/python3.4/dist-packages/wpull/builder.py", line 743, in _build_recorder
    wpull.driver.phantomjs.get_version(exe_path=args.phantomjs_exe)
  File "/usr/local/lib/python3.4/dist-packages/wpull/driver/phantomjs.py", line 134, in get_version
    stdout=subprocess.PIPE
  File "/usr/lib/python3.4/subprocess.py", line 859, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.4/subprocess.py", line 1457, in _execute_child
    raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'phantomjs'