Do you want to ask, "What if the facebook installation package fails to parse?" ? The reason for this is to check the network connection, check the storage space, update the playback storage and clear the cache.

1. Check the network connection: Make sure your device is connected to the network and the network connection is stable, which can solve the problem that the facebook installation package failed to parse.

2. Check the storage space: Make sure your device has enough storage space to install the Facebook application.

3. Update the Play Store: Make sure your Google Play Store is the latest version. Sometimes, older versions of the Play Store can cause installation problems.

4. Clear the cache: Clear the cache and data in Google Play Store, and then try the installation again.