Solved: java.lang.ClassCastException: android.app.ContextImpl cannot be cast to android.app.Activity
If you are working on Android application or AAR Library, you will be using applications context frequently … Read more
Errors & Failures
apt-get stuck at 0% ( Connecting to archive.ubuntu.com ) on ubuntu 16.04 and doesn’t proceed
Recently we installed ubuntu 16.04 32bit on our laptop. After installation is done, we wanted to install … Read more
Solved : E: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable)
If you are trying to install some package on Ubuntu and by some means, in middle of … Read more
Solved: DisallowedHost – Invalid HTTP_HOST header
This error is related to “Installing Django and Django-REST Framework on ubuntu” , if you have Django … Read more
PHP : Allowed memory size of bytes exhausted : WordPress
If you are trying to develop some website on shared hosting using wordpress, there are high chances … Read more
Solved Moodle Error : Invalid get-string() identifier
Sometime if you login to moodle as administrator, and tries to browse the admin pages, you might … Read more
How to find list of installed files from a package in Linux ?
Recently we installed one package, but couldn’t understood which all files it installed on Ubuntu. You can … Read more
How to find the package that provides a file in Ubuntu ?
If you want to identify some binary belongs to which package in Ubuntu in certain situations when … Read more
How to compile DTS to DTB from Linux kernel and manually ?
Lets say, you have been trying to compile Linux kernel source code for Raspberry Pi following steps … Read more
How to solve : undefined reference to `MD5_Init’
If you are compiling a c propgram which calculates MD5 using a c program, there are higher … Read more