Solving the "use of undefined type" in C++

Question

I have an issue in my project, where I get use of undefined type AssetManager. I have been stuck with this error for 3 days now.

#pragma once
#include "Components.h"
#include "SDL.h"
#include "Animation.h"
#include "TextureManager.h"
#include "AssetManager.h"
#include"Game.h"
#include <map>
class SpriteComponent :public Component {
private:
    TransformComponent *transform;
    SDL_Rect srcRect, destRect;
    SDL_Texture *texture;
    bool animated = false;
    int frames = 0;
    int speed = 100; 
    int animIndex = 0;
public:
    SpriteComponent() = default;
    std::map<const char*, Animation>animations;
    SDL_RendererFlip spriteFlip = SDL_FLIP_NONE;
    SpriteComponent(std::string id, bool animate) {
        setTexture(id);
        Animation idle = Animation(100, 3, 0),
            walk = Animation(100, 8, 1);
        animations["idle"] = idle;
        animations["walk"] = walk;
        play("idle");
        animated = animate;
    }
    void setTexture(std::string id) {
        texture = Game::assets->getTexture(id);
    }
};

Here is the code of the Game.h, knowing I included AssetManager.h inside Game.cpp:

#include<SDL.h>
#include<iostream>
#include<SDL_image.h>
#include<vector>
class AssetManager;
class Game
{...}