have you defined the relationship between profile and role models correctly ?

yes i have defined it correctly

Here is the code block of User model

public function profile()
{
        return $this->hasOne('App\Profile','user_id');
}

Here is the code block of Profile model

public function user()
{
        return $this->belongsTo('App\User','user_id');
 }

so what was the problem cause i have 3 tables all relationship right but i cant do the update i dont know the method how it work all i did was this so far

 public function update(StoreUser $request, User $user){
        $user = User::findOrFail($user);