Nissan altima 97 shifting problem

I have a problem to shift from the parking status to the other, it seems it is some thing with the shift lock can any body tell me how to fix it.

A bad or out of adjustment stop light switch will prevent the shift inter-lock from releasing. The problem may also effect your brake lights.

A bad or out of adjustnent stop light switch will prevent the shift inter-lock from releasing. The problem may also effect your brake lights.

I dont know what is the correlation between the stop light and shifting problem as I dont have problem with the stop light.

The same switch that turns on the power to the stop lights turns on the power to the electro-magnet called a solenoid that un-locks the transmission gear shifter. The first thing to know is that you have to step on the brake to shift out of park position.