Installation Yade on Ubuntu 16.04 Xenial

Please, show your /etc/apt/sources.list

# deb cdrom:[Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)]/ trusty main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://br.archive.ubuntu.com/ubuntu/ xenial main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://br.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://br.archive.ubuntu.com/ubuntu/ xenial universe
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial universe
deb http://br.archive.ubuntu.com/ubuntu/ xenial-updates universe
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://br.archive.ubuntu.com/ubuntu/ xenial multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial multiverse
deb http://br.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://br.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu xenial-security main restricted
deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
deb http://security.ubuntu.com/ubuntu xenial-security universe
deb-src http://security.ubuntu.com/ubuntu xenial-security universe
deb http://security.ubuntu.com/ubuntu xenial-security multiverse
deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu xenial partner
# deb-src http://archive.canonical.com/ubuntu trusty partner

# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
# deb http://www.yade-dem.org/packages/ trusty/ # desabilitado na atualização para xenial
deb http://www.yade-dem.org/packages/ xenial xerus/
deb http://www.yade-dem.org/packages/ xenial/
deb http://www.yade-dem.org/packages/ xenial/

You have to remove this line:

deb http://www.yade-dem.org/packages/ xenial xerus/

Also last 2 duplicating lines should be shortened to one.

Regards

Anton

Even doing the modifications in sources.list, I got these errors:
##############################################################
Err:1 http://www.yade-dem.org/packages xenial/ libyadedaily 2016.06a-19-baba476~xenial-1
  Writing more data than expected (8980170 > 8979088)
Obter:3 http://www.yade-dem.org/packages xenial/ yadedaily 2016.06a-19-baba476~xenial-1 [1.622 kB]
Err:3 http://www.yade-dem.org/packages xenial/ yadedaily 2016.06a-19-baba476~xenial-1
  Writing more data than expected (1622947 > 1621834)
Obter:2 http://www.yade-dem.org/packages xenial/ python-yadedaily 2016.06a-19-baba476~xenial-1 [2.093 kB]
Err:2 http://www.yade-dem.org/packages xenial/ python-yadedaily 2016.06a-19-baba476~xenial-1
  Hash Sum incorrect
###############################################################
Is that normal, or could be necessary reinstall ubuntu?

Thanks.
Luis

There are some problems already on our side. Will be fixed in a couple of days.

Anton

Should be fixed already.

It seems that was installed, but when I run it shows this error:

luis-barbosa@luis-ubuntu:~/Estrutura_Solo$ yadedaily agregadosJCF.py
Welcome to Yade 2016.06a-20-d4840e5~xenial
TCP python prompt on localhost:9000, auth cookie `yeacss'
XMLRPC info provider on http://localhost:21000
Traceback (most recent call last):
  File "/usr/bin/yadedaily", line 289, in <module>
    import yade.qt
  File "/usr/lib/x86_64-linux-gnu/yadedaily/py/yade/qt/__init__.py", line 16, in <module>
    from PyQt5 import QtWebKit, QtWebKitWidgets
ImportError: cannot import name QtWebKit

tks.
Luis

Thanks Klaus Thoeni, that solved my question.