HI,
I'm getting this error like
System.QueryException: only aggregate expressions use field aliasing


public static list<Property__c> getFilteredProperty(string Location,string BedRoom,string BathRoom,string MaxBudget)
  {
  list<Property__c> allPropertyLists = new list<Property__c>();
  string PropertyQuery = 'SELECT Id,Additional_Rooms__c,Available_From__c,Carpet_area_sqft__c,Covered_Area_sqft__c ';
     PropertyQuery = PropertyQuery+ 'Electricity_Status__c,Facing__c,Floor__c,For_Bachelor__c,For_Family__c,Furnishing_Available__c,Furnish_Type__c,Geo_Map__c,Landmark__c,Location__c,Area__c,Status__c,State__c,country__c,Maintainance_Charge__c,No_of_Balcony__c,No_of_Bathroom__c,No_of_Bedroom__c,Property_Description__c,Property_Main_Image__c,Property_Owner__c,Property_Video_URL__c,Name,Rent__c,Security_Deposit__c,Verified__c,Water_Availability__c ';
     PropertyQuery = PropertyQuery+' FROM Property__c ';
  string WhereClause= 'WHERE Rent__c != NULL';
      system.debug('*****Location'+Location);
      if(string.isNotBlank(Location))
      {
          if(Location !='ALL')
          {
              WhereClause=WhereClause+ ' AND Area__c =:Location ';
          }
      }
      system.debug('*****BedRoom'+BedRoom);
      integer BedRoomCount;
      if(string.isNotBlank(BedRoom))
      {
          if(BedRoom !='ALL')
          {
              BedRoomCount=integer.valueOf(BedRoom);
              WhereClause=WhereClause+ ' AND No_of_Bedroom__c=:BedRoom ' ;
          }
      }
       system.debug('*****BathRoom'+BathRoom);
      integer BathRoomCount;
      if(string.isNotBlank(BathRoom))
      {
          if(BathRoom !='ALL')
          {
              BathRoomCount=integer.valueOf(BathRoom);
              WhereClause=WhereClause+ ' AND No_of_Bathroom__c=:BathRoom ' ;
          }
      }
      system.debug('*****MaxBudget'+MaxBudget);
      double MaxBudgetValue;
      if(string.isNotBlank(MaxBudget))
      {
              MaxBudgetValue=double.valueOf(MaxBudget);
              WhereClause=WhereClause+ ' AND Rent__c <=:MaxBudget ' ;
      }
      PropertyQuery=PropertyQuery+' '+WhereClause;
      system.debug('PropertyQuery' +PropertyQuery);
      allPropertyLists = Database.query(PropertyQuery);
       system.debug('PropertyQuery' +allPropertyLists);     
      return allPropertyLists;
   }public static list<Property__c> getFilteredProperty(string Location,string BedRoom,string BathRoom,string MaxBudget)
  {
  list<Property__c> allPropertyLists = new list<Property__c>();
  string PropertyQuery = 'SELECT Id,Additional_Rooms__c,Available_From__c,Carpet_area_sqft__c,Covered_Area_sqft__c ';
     PropertyQuery = PropertyQuery+ 'Electricity_Status__c,Facing__c,Floor__c,For_Bachelor__c,For_Family__c,Furnishing_Available__c,Furnish_Type__c,Geo_Map__c,Landmark__c,Location__c,Area__c,Status__c,State__c,country__c,Maintainance_Charge__c,No_of_Balcony__c,No_of_Bathroom__c,No_of_Bedroom__c,Property_Description__c,Property_Main_Image__c,Property_Owner__c,Property_Video_URL__c,Name,Rent__c,Security_Deposit__c,Verified__c,Water_Availability__c ';
     PropertyQuery = PropertyQuery+' FROM Property__c ';
  string WhereClause= 'WHERE Rent__c != NULL';
      system.debug('*****Location'+Location);
      if(string.isNotBlank(Location))
      {
          if(Location !='ALL')
          {
              WhereClause=WhereClause+ ' AND Area__c =:Location ';
          }
      }
      system.debug('*****BedRoom'+BedRoom);
      integer BedRoomCount;
      if(string.isNotBlank(BedRoom))
      {
          if(BedRoom !='ALL')
          {
              BedRoomCount=integer.valueOf(BedRoom);
              WhereClause=WhereClause+ ' AND No_of_Bedroom__c=:BedRoom ' ;
          }
      }
       system.debug('*****BathRoom'+BathRoom);
      integer BathRoomCount;
      if(string.isNotBlank(BathRoom))
      {
          if(BathRoom !='ALL')
          {
              BathRoomCount=integer.valueOf(BathRoom);
              WhereClause=WhereClause+ ' AND No_of_Bathroom__c=:BathRoom ' ;
          }
      }
      system.debug('*****MaxBudget'+MaxBudget);
      double MaxBudgetValue;
      if(string.isNotBlank(MaxBudget))
      {
              MaxBudgetValue=double.valueOf(MaxBudget);
              WhereClause=WhereClause+ ' AND Rent__c <=:MaxBudget ' ;
      }
      PropertyQuery=PropertyQuery+' '+WhereClause;
      system.debug('PropertyQuery' +PropertyQuery);
      allPropertyLists = Database.query(PropertyQuery);
       system.debug('PropertyQuery' +allPropertyLists);     
      return allPropertyLists;
   }