Month: January 2021

Solving errors of publishing an app on Google Play – Cordova / Ionic

INVALID APP VERSION :versionCode OR versionName

You should have a look on the following files:
You will find the tag “android:versionCode” and ” android:versionName”.
You will find the tag “android-versionCode” and ” version”.

Don’t forget to change this file and not only the AndroidManifest.xml because if you are using the Ionic Cordova command to build, this one:

ionic cordova build android --prod --release

It will takes the version from config.xml and should regenerate AndroidManifest.xml.


• Open Android Studio
• Download the latest version of the Android SDK, by going File > Project Settings :

The latest API level is 30

• Set the latest API level on File > Project Structure :

CentOS : Fix ” HTTPS Error 404 – Not Found ” with YUM

If you want to install a package on CentOS with YUM is it possible that you might have the following error

Total download size: 20 M
Installed size: 60 M
Is this ok [y/d/N]: y
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
PACKAGE.x86 FAILED                                  [Errno 14] HTTPS Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article

If above article doesn't help to resolve this issue please use

Error downloading packages:
  2:PACKAGE.x86_64: [Errno 256] No more mirrors to try.

To solve this problem we should reset the sources used by YUM, the package manager of CentOS. To do so, you should use the following command:

yum clean all

It should clean the sources of the repos. You should now be able to install the packages you want with yum i <package>