# Error at launch in Ubuntu 18.04

**URL:** <https://discourse.psychopy.org/t/error-at-launch-in-ubuntu-18-04/10168>\
**Category:** Other\
**Created:** [December 4, 2019, 3:57pm UTC](https://discourse.psychopy.org/t/error-at-launch-in-ubuntu-18-04/10168 "2019-12-04T15:57:19Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![lorenzoDACG](https://avatars.discourse-cdn.com/v4/letter/l/b77776/32.png) [@lorenzoDACG](https://discourse.psychopy.org/u/lorenzoDACG)\
**Post date:** [December 4, 2019, 3:57pm UTC](https://discourse.psychopy.org/t/error-at-launch-in-ubuntu-18-04/10168/1 "2019-12-04T15:57:19Z")

</div>

Dear all,

I just installed PsychoPy on Ubuntu 18.04 with python 2.7 using

`pip install psychopy`

`sudo pip install ~/Scaricati/wxPython-4.0.7.post2-cp27-cp27mu-linux_x86_64.whl`

but when I launch PsychoPy from the terminal I get

```auto
16:44:39: Debug: Adding duplicate image handler for 'Windows bitmap file'
16:44:39: Debug: Adding duplicate image handler for 'Windows bitmap file'
16:44:39: Debug: Adding duplicate image handler for 'Windows bitmap file'
Traceback (most recent call last):
  File "/home/lorenzo/.local/bin/psychopy", line 11, in <module>
    load_entry_point('PsychoPy==3.2.4', 'gui_scripts', 'psychopy')()
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/psychopyApp.py", line 100, in main
    start_app()
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/psychopyApp.py", line 28, in start_app
    app = PsychoPyApp(0, showSplash=showSplash)
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/_psychopyApp.py", line 182, in __init__
    self.onInit(testMode=testMode, **kwargs)
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/_psychopyApp.py", line 218, in onInit
    from psychopy.app import coder, builder, dialogs
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/coder/ __init__.py", line 9, in <module>
    from .coder import * # pylint: disable=W0401
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/coder/coder.py", line 22, in <module>
    import psychopy.app.pavlovia_ui.menu
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/pavlovia_ui/ __init__.py", line 19, in <module>
    from .functions import *
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/pavlovia_ui/functions.py", line 13, in <module>
    from ._base import PavloviaMiniBrowser, PavloviaCommitDialog
  File "/home/lorenzo/.local/lib/python2.7/site-packages/psychopy/app/pavlovia_ui/_base.py", line 9, in <module>
    import wx.html2
  File "/usr/local/lib/python2.7/dist-packages/wx/html2.py", line 15, in <module>
    from ._html2 import *
ImportError: libwebkitgtk-3.0.so.0: impossibile aprire il file oggetto condiviso: File o directory non esistente

```

(the last line reads: impossible to open the shared object file: non existent file or directory)

If I try to install libwebkitgtk-3.0.so.0 with apt I get “impossible to find the package”.

I guess I’m just making some noob mistake.

Thanks in advance for any help.

Lorenzo