there must be a power port not correctly connected to a pin or wire. they may overlap and it is hard to see.
Make sure you work with a large grid. Altium also has an electrical grid which will automatically snap to the nearest wire or pin.
I have try my best to check the connection and it seems OK and also I highlighted GND and POWER net and they all get highlighted with these floated power pins but when I compile still I receive the same message that " floating power object".
Kindly help me in this regard