I install Odoo 9.0 according to <Odoo_Development_Cookbook>;
and when I type this lline code: "sudo apt-get install gcc python2.7-dev libxml2-dev libxslt1-dev libevent-dev libsasl2-dev libldap2-dev libpq-dev libpng12-dev libjpeg-dev"
I get error as below:
The following packages have unmet dependencies:
libxml2-dev : Depends: libxml2 (= 2.9.1+dfsg1-5+deb8u1) but 2.9.1+dfsg1-5+deb8u2 is to be installed
libxslt1-dev : Depends: libxslt1.1 (= 1.1.28-2+b2) but 1.1.28-2+deb8u1 is to be installed
python2.7-dev : Depends: libpython2.7-dev (= 2.7.9-2) but it is not going to be installed
Depends: libexpat1-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
How shall I resolve these?
Thank you!