Error installing php5-mcrypt

Question

Just today I signed up with Google Cloud Compute Engine. I did everything but then I stuck into an error while installing php5-mcrypt extension. Error:

root@instance-2:~# sudo apt-get install php5-mcrypt
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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:
 php5-mcrypt : Depends: phpapi-20121212
               Depends: php5-common (= 5.5.24+dfsg-1+deb.sury.org~vivid+1) but 5.6.4+dfsg-4ubuntu6 is to be installed
E: Unable to correct problems, you have held broken packages.

I searched everywhere and then I came here. Please help.

Answer 1

sudo service apache2 restar

apt-get install php5-common 

Or, if you dont need to keep configurations:

apt-get purge php5-common
apt-get install php5-common

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Do you get any output from apt-mark showhold?

If it does not solve your problem, you should try install it with aptitude:

sudo apt-get install aptitude
sudo aptitude install php5-mcrypt

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Finally reatast the server

sudo service apache2 restart