FileNotFoundError: [WinError 2] Impossibile trovare il file specificato (impossible to find the specified file)

[fede72bari]

I have installed pyvirtualdisplay through Anaconda; in a jupyter notebook imported it and run the command

display = pyvirtualdisplay.Display(visible=0, size=(1400, 900)).start()

But i get the error

FileNotFoundError: [WinError 2] Impossibile trovare il file specificato

translated from Italian "Impossible to find the specified file", which one is not clear. Anyway here the full error log

FileNotFoundError                         Traceback (most recent call last)
~\AppData\Local\Temp\ipykernel_17532\940933446.py in <module>
     34 
     35 # Set up a virtual display for rendering OpenAI gym environments.
---> 36 display = pyvirtualdisplay.Display(visible=0, size=(1400, 900)).start()

~\anaconda3\envs\mltrade2\lib\site-packages\pyvirtualdisplay\display.py in __init__(self, backend, visible, size, color_depth, bgcolor, use_xauth, retries, extra_args, manage_global_env, **kwargs)
     52             raise ValueError("unknown backend: %s" % self._backend)
     53 
---> 54         self._obj = cls(
     55             size=size,
     56             color_depth=color_depth,

~\anaconda3\envs\mltrade2\lib\site-packages\pyvirtualdisplay\xvfb.py in __init__(self, size, color_depth, bgcolor, use_xauth, fbdir, dpi, retries, extra_args, manage_global_env)
     42         self._dpi = dpi
     43 
---> 44         AbstractDisplay.__init__(
     45             self,
     46             PROGRAM,

~\anaconda3\envs\mltrade2\lib\site-packages\pyvirtualdisplay\abstractdisplay.py in __init__(self, program, use_xauth, retries, extra_args, manage_global_env)
     83         self._retries_current = 0
     84 
---> 85         helptext = get_helptext(program)
     86         self._has_displayfd = "-displayfd" in helptext
     87         if not self._has_displayfd:

~\anaconda3\envs\mltrade2\lib\site-packages\pyvirtualdisplay\util.py in get_helptext(program)
     11 
     12     # py3.6 also
---> 13     p = subprocess.Popen(
     14         cmd,
     15         stdout=subprocess.PIPE,

~\anaconda3\envs\mltrade2\lib\subprocess.py in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags, restore_signals, start_new_session, pass_fds, user, group, extra_groups, encoding, errors, text, umask, pipesize)
    964                             encoding=encoding, errors=errors)
    965 
--> 966             self._execute_child(args, executable, preexec_fn, close_fds,
    967                                 pass_fds, cwd, env,
    968                                 startupinfo, creationflags, shell,

~\anaconda3\envs\mltrade2\lib\subprocess.py in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, unused_restore_signals, unused_gid, unused_gids, unused_uid, unused_umask, unused_start_new_session)
   1433             # Start the process
   1434             try:
-> 1435                 hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
   1436                                          # no special security
   1437                                          None, None,

FileNotFoundError: [WinError 2] Impossibile trovare il file specificato```

[ponty]

"pyvirtualdisplay is a python wrapper for Xvfb, Xephyr and Xvnc"

Have you installed Xvfb?

#56
#73