How do you fix parsing error without using app for phone?

To fix a parsing error without using an app on your phone, you can start by ensuring that the APK file you are trying to install is compatible with your device's operating system. Make sure to enable "Install from Unknown Sources" in your device's settings under Security. Additionally, check if the APK file is corrupted or incomplete; if so, try downloading it again from a reputable source. Finally, clearing the cache and data of the Package Installer in your device's settings can also help resolve the issue.