Failure INSTALL PARSE FAILED MANIFEST MALFORMED

It May cause for Android 12 . For this

Add exported = true in your Activity Example :

 <activity
            android:exported="true"   />

I was having this error because i had capital letters in my package name like this.

Com.Droider.packagename;

After i had changed it to something like:

com.droider.packagename;

In your case try to change it to:

work.work;

EDIT 1 :

May be this causes also.

android:name="MainActivity"

Change this to.

android:name=".MainActivity"