I’ve been trying to compile this into an object file for my weather app so I can create an executable file with other object files but I keep getting this error.

anjiowate@Anjis-MacBook-Air weatherApplication % g++ -c ManageLocations.cpp -o ManageLocations.o        
ManageLocations.cpp:9:16: warning: 'auto' type specifier is a C++11 extension [-Wc++11-extensions]
    for (const auto& loc : locations) {
               ^
ManageLocations.cpp:9:26: warning: range-based for loop is a C++11 extension [-Wc++11-extensions]
    for (const auto& loc : locations) {
                         ^
ManageLocations.cpp:16:5: warning: 'auto' type specifier is a C++11 extension [-Wc++11-extensions]
    auto it = std::find_if(locations.begin(), locations.end(), [&](const Location& loc) { return loc.id == id; });
    ^
ManageLocations.cpp:16:64: error: expected expression
    auto it = std::find_if(locations.begin(), locations.end(), [&](const Location& loc) { return loc.id == id; });
                                                               ^
ManageLocations.cpp:27:72: error: expected expression
    locations.erase(std::remove_if(locations.begin(), locations.end(), [&](const Location& loc) { return loc.id == id; }), locations.end());
                                                                       ^
ManageLocations.cpp:32:16: warning: 'auto' type specifier is a C++11 extension [-Wc++11-extensions]
    for (const auto& loc : locations) {
               ^
ManageLocations.cpp:32:26: warning: range-based for loop is a C++11 extension [-Wc++11-extensions]
    for (const auto& loc : locations) {
                         ^
ManageLocations.cpp:41:5: warning: 'auto' type specifier is a C++11 extension [-Wc++11-extensions]
    auto it = std::find_if(locations.begin(), locations.end(), [&](const Location& loc) { return loc.id == id; });
    ^
ManageLocations.cpp:41:64: error: expected expression
    auto it = std::find_if(locations.begin(), locations.end(), [&](const Location& loc) { return loc.id == id; });
                                                               
6 warnings and 3 errors generated.
anjiowate@Anjis-MacBook-Air weatherApplication % 

cpp file:

#ifndef LOCATIONMANAGER_H
#define LOCATIONMANAGER_H

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

class Location {
public:
    std::string id;
    std::string name;
    double latitude;
    double longitude;
    bool favorite;
    
    Location(const std::string& id, const std::string& name, double latitude, double longitude, bool favorite = false)
        : id(id), name(name), latitude(latitude), longitude(longitude), favorite(favorite) {}
};

class LocationManager {
public:
    void addLocation(const std::string& id, const std::string& name, double latitude, double longitude);
    void displayLocations();
    void modifyLocation(const std::string& id, const std::string& newName, double newLatitude, double newLongitude);
    void removeLocation(const std::string& id);
    void searchLocation(const std::string& query);
    void setFavorite(const std::string& id, bool isFavorite);
    void showLocation(); 

private:
    std::vector<Location> locations;
};

#endif // LOCATION_MANAGER_H

header file:

#ifndef WEATHERAPP_H
#define WEATHERAPP_H
#include "ManageLocations.h"  
#include "weatherForecast.h"  
#include "HistoricalWeather.h"  
#include "AirQuality.h"  
#include "SettingsFetcher.h"
#include <iostream>
#include <string>
#include <iostream>
#include <string>
#include <curl/curl.h>

class WeatherApp {
public:
    void displayMainMenu();
    void run();
};

#endif

Just to note im using vscode on a Mac