我正在尝试更新我的 linux 软件包，但出现以下错误：
# apt-get update
Ign:1 http://ftp.be.debian.org/debian wheezy InRelease
Hit:2 http://ftp.be.debian.org/debian wheezy Release
Hit:4 http://ftp2.nluug.nl/os/Linux/distr/kali kali-rolling InRelease
Reading package lists... Done
# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
cadaver cups-bsd cups-client curl empathy exim4-daemon-light gir1.2-networkmanager-1.0
gir1.2-totem-1.0 glib-networking iptables ldap-utils libavformat-ffmpeg56 libct4 libcups2
libcupsimage2 libcurl3-gnutls libgadu3 libgnomevfs2-0 libgnustep-base1.24 libgnutls-openssl27
libimobiledevice6 libldap-2.4-2 libmagickcore-6.q16-2-extra libneon27-gnutls libnm-gtk-common
libnm-gtk0 libnm-util2 libnm0 libopencv-calib3d2.4v5 libopencv-contrib2.4v5 libopencv-core2.4v5
libopencv-features2d2.4v5 libopencv-flann2.4v5 libopencv-highgui2.4v5 …