It is impossible to install normally. Cannot install. Either the installation package of today's headlines you downloaded is incomplete, and you need to download and install it again if there is a problem.

Or there is no space left on the default storage (mobile phone memory, SD card) set by your Huawei mobile phone. Or the phone memory is running out, you can try to install it after restarting, but it still won't work. You need to uninstall or manually end some programs and try again.

You can check the remaining space in the phone memory (or the set SD card). See if it's enough.