[gipsy]

Hi,
i try to install the latest Calibre with the sudo etc command in my OrangePi (running Ubuntu 16.04.3 LTS)
But i get the following error

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<string>", line 726, in main
  File "<string>", line 687, in run_installer
  File "/usr/lib/python2.7/subprocess.py", line 523, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
    raise child_exception
OSError: [Errno 8] Exec format error

What i can do?
I can only install Calibre 2.55 with apt-get

Thanks