Android error: Fragment is not currently in the FragmentManager
Sample error: Solution: Change: To :
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Android Error: CLEARTEXT communication to not permitted by network security policy
This problem is similar to the problem: Android: how to fix: No Network Security Config specified, using platform default This occurs to the api 28…
CentOS 8: install MKVToolNix
Step 1: Install dependencies: qt5-qtmultimedia cmark-lib fmt sudo yum install -y qt5-qtmultimedia cmark-lib fmt Step 2: Install MKVToolNix Done, now you can use command: mkvtoolnix-gui
CentOS 8: install VLC player
sudo yum install vlc -y Result: Directory VLC extensions: /usr/lib64/vlc/lua/extensions
CentOS 8: How to use xrdp remote access
Step 1: Install XRDP Step 2: Install xfce CentOS 8: how to install xfce Desktop Step 3 – Configure xRDP In this step, we create…
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I. Create new user: Step 1: CentOS: how to create sudo user II. Install xfce Step 2: Install xfce yum install epel-release yum groupinstall xfce…
How to compile FFmpeg on CentOS 8
Step 1: yum install -y autoconf automake bzip2 cmake freetype-devel gcc gcc-c++ git libtool make mercurial pkgconfig zlib-devel Result: Step 2: Step 3: Result: Step…
Linux: How to use rescue system to fix server problem
Step 1: boot into rescue mode Some server provider provide feature Reload Operating System Step 2: find mount root filesystem Step 3: mount root filesystem…
How to fix error: service MongoDB failed to start，verify that you have sufficient privileges to start system services
Error message: Service ‘MongoDB Server (MongoDB)’ (MongoDB) failed to start. Verify that you have sufficient privileges to start system services Solution: Install microsoft visual C++…
Android Lesson 15: Broadcast Receiver
Have you ever wondered what mechanism in Android used to listen for all the changes, the events of the system? System’s means of the operating…