<div dir="ltr">[SOLVED]<div>Hi I just googled a lot and played around. I type the following in the terminal:</div><div>dpkg --print-foreign-architectures</div><div><br></div><div>and it siad:</div><div>x86</div><div><br></div><div>As you said x86 is not a valid Debian(derivative) architecture so I removed it by:</div><div>dpkg --remove-architecture x86</div><div><br></div><div>Then everything works.</div><div>Thank you for the help!</div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font size="4"><b>Chongyun Yao</b></font></div><div dir="ltr"><div><font size="2"><br></font></div><div><font size="2">Chalmers University of Technology, Sweden</font></div><div><br></div><div><a href="/user/SendEmail.jtp?type=node&node=4667674&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a><br></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">2016-04-05 13:38 GMT+02:00 姚崇云 <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=4667674&i=1" target="_top" rel="nofollow" link="external">[hidden email]</a>></span>:<br><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Sorry I am too new to these...<br><br></div>So here's the file "mono-xamarin.list" which is in the <span>/etc/apt/sources.list.d/
</span>:<br>deb <a href="http://download.mono-project.com/repo/debian" target="_blank" rel="nofollow" link="external">http://download.mono-project.com/repo/debian</a> wheezy main<br>deb <a href="http://download.mono-project.com/repo/debian" target="_blank" rel="nofollow" link="external">http://download.mono-project.com/repo/debian</a> wheezy-apache24-compat main<br>deb <a href="http://download.mono-project.com/repo/debian" target="_blank" rel="nofollow" link="external">http://download.mono-project.com/repo/debian</a> wheezy-apache24-compat main<br></div><div class="gmail_extra"><span class=""><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font size="4"><b>Chongyun Yao</b></font></div><div dir="ltr"><div><font size="2"><br></font></div><div><font size="2">Chalmers University of Technology, Sweden</font></div><div><br></div><div><a href="/user/SendEmail.jtp?type=node&node=4667674&i=2" target="_top" rel="nofollow" link="external">[hidden email]</a><br></div></div></div></div></div></div></div></div>
<br></span><div class="gmail_quote"><div><div class="h5">2016-04-05 6:52 GMT-04:00 Jo Shields [via Mono] <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=4667674&i=3" target="_top" rel="nofollow" link="external">[hidden email]</a>></span>:<br></div></div><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><span>
<br><br>On 05/04/16 12:12, 姚崇云 wrote:
</span><span><div><div class='shrinkable-quote'><br>> Hi,
<br>>
<br>> I just checked my "sources.list", it is:
<br>>
<br>> #
<br>>
<br>> # deb cdrom:[Debian GNU/Linux 2.0 _Sana_ - Official Snapshot i386
<br>> LIVE/INSTALL Binary 20150811-09:06]/ sana contrib main non-free
<br>>
<br>> #deb cdrom:[Debian GNU/Linux 2.0 _Sana_ - Official Snapshot i386
<br>> LIVE/INSTALL Binary 20150811-09:06]/ sana contrib main non-free
<br>>
<br>> # Line commented out by installer because it failed to verify:
<br>> #deb <a href="http://security.kali.org/kali-security/" rel="nofollow" link="external" target="_blank">http://security.kali.org/kali-security/</a> sana/updates main contrib
<br>> non-free
<br>> # Line commented out by installer because it failed to verify:
<br>> #deb-src <a href="http://security.kali.org/kali-security/" rel="nofollow" link="external" target="_blank">http://security.kali.org/kali-security/</a> sana/updates main
<br>> contrib non-free
<br>>
<br>> How could I fix that? And in my "source.list", there is nothing inside.
<br>>
</div></div><br></span><span>Sorry, the file in question will be one of the files in
<br>/etc/apt/sources.list.d/
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