HTML App update error - Fatal error: Class 'N2ZipRead' not found in .../nextend/native/platform.php on line 53

Error message during update

Fatal error: Class 'N2ZipRead' not found in .../nextend/native/platform.php on line 53

Cause

We had to update our zipping code, which required modifying this part of the code. Because of this, the update cannot work properly, as the previous zip file related codes are no longer in the installer.

Solution

Manually update your Smart Slider, as you see here.