If you are an android user then you should be familiar with this error.
1. Sometimes the Parse error occurs if the apk is corrupted or not fully downloaded or it is not
supported on your current android version. If the app is compatible and still showing parse
error,then redownload it.. Because the app may get corrupted.
2. Get a good file manager to install the apps if your are not doing that already. ES File explorer
recommended.
3.go to the menu. Tap on the settings.
Then tap on the apps. Then tap on the manage apps.
Then clear the cache. If it happens from google store.
4. Go to settings Applications
Check mark Unknown sources,Manage applications
Select all tab, Scroll down to Google play store
Open Google play store
Clear data/cache
Reboot device.Now try to install app via play store
if none of the above solves your problem
5. Do a factory reset