I can't install apps on my honor 4x

[A honor user]

When I install apps in my app installer it doesn't works it only shows installing. It shows that for many long and the app will not be installed

 

[B. Diddy]

Welcome to Android Central! Moved from the KitKat forum to the Honor 4X forum.

Are you installing from the Play Store, or from some other source? Does this happen on both wi-fi and mobile data?
Try going to Settings>Apps>All, select Google Play Store, and Clear Cache/Clear Data, then Force Stop. Do the same for Download Manager. Now try again.

If that doesn't work, try going to Settings>Accounts-Google, select your Google account, and remove it completely from the phone. Then add it back again, and see if that helps.