I am trying to install gnome-shell but it shows me an error:  $ sudo apt-get install gnome-shell  ...  Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:  The following packages have unmet dependencies:  gnome_shell : Depends: gnome-settings-daemon (&gt;= 3.4.0) but it is not going to be installed                Recommends: gnome-control-center but it is not going to be installed E: Unable to correct problems, you have held broken packages.       sudo apt-get update &amp;&amp; sudo apt-get upgrade     sudo apt-get -f install     sudo apt-get install gnome-shell     From comments:  $ sudo apt-get install -f gnome-shell gnome-control-center gnome-settings-daemon The following information may help to resolve the situation:  The following packages have unmet dependencies:  gnome-settings-daemon : Depends: gnome-settings-daemon-schemas (= 3.12.2-0ubuntu1~trusty3) but 3.8.6.1-0ubuntu11.2 is to be installed E: Unable to correct problems, you have held broken packages.
Occasionally, when I'm installing stuff, I get an error like the following:  Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:  The following packages have unmet dependencies:  package1 : Depends: package2 (&gt;= 1.8) but 1.7.5-1ubuntu1 is to be installed E: Unable to correct problems, you have held broken packages.   How can I resolve this?
I can't run this latex script $(x^3+xy^2-y)dx+(y^3+x^2y+x)dy=0$ I tried to find on Wolfram Alpha but it showed only the solution not in step-by-step, I know that the factor is $\frac{1}{x^2+y^2}$ but how to find it? Prove that if $f$ is a real continuous function such that $|f|\le 1$ then $|\int_{|z|=1} f(z)dz| \le 4$ I've encountered the following problem in complex analysis:  Prove that if $f$ is a real continuous function such that $|f|\le 1$ then $|\int_{|z|=1} f(z)dz| \le 4$.  I've decomposed $f$ to it's real and imaginary parts and got that it's enough to prove that:  $(\int_0^{2\pi}cos(\theta)g(\theta)d\theta)^2 +(\int_0^{2\pi}sin(\theta)g(\theta)d\theta)^2 \le 16$   Where $g(\theta)=f(e^{i\theta})$.   But now I'm stuck. Any ideas?  Thanks Why do we need Diffie Hellman? Diffie–Hellman offers secure key exchange only if sides are authenticated. For authentication, sides are using public/private key. 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I deleted contents of my download folder and moved the contents from my desktop and my documents. this freed some 50 GB. but within minutes it was full again. ran disk cleanup and gained some 2 GB. i checked size of all the folders ignored large sized windows and program files and program files (x86). Was baffled when users folder said 110 GB. went to my user folder and selected all files n checked properties it showed under 5 GB. So if i check my user folders properties it says 110 GB but if i check properties of its content its under 5 GB. BTW I am not using any anti virus program. Do you guys have any idea whats going on. Is my laptop possessed or something? :P Please help me out. So I have a Palm Pre (original P100EWW) model that I enabled developer mode on, and installed a Debian Squeeze chroot.  Works great.  I have plans to use this for ANYTHING (bittorrent peer, web server) but a phone.  I noticed if I do a cat /dev/urandom &gt; /dev/fb0 it actually writes random pixels to the screen until a No space left on device error is generated.  Awesome, now I can use the display.  So what kind of utilites are there that will either A) let me use /dev/fb0 as a console I can output text to or B) render text on /dev/fb0 from the command line.  I don't know about recompiling the kernel for this yet (I'd love to eventually strip WebOS off entirely and turn this into a minimal ARM server) so userspace tools if they exist is what I'm asking about.  Also would prefer to render directly to /dev/fb0 and not use X. I'm setting up a child theme in WordPress and I can't make add_action to be fired within functions.php.  Functions.php is called and I can run code from within. 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