Why my player keeps falling through the base tile map

[urmom1234567890]

My player keeps falling through the base tile map. the player has rigidbody2d. I have no clue how to fix this problem. I am a beginner. please can anyone help?

[dstears]

Are you using a Tilemap for the ground? Do you have a tilemap collider on the tilemap layer?

If you just want to try out collision behavior without dealing with the complexities of tilemaps, you can just add a normal Square sprite to the scene and use the Scale parameters in the Transform to make a big wide ground. Then you can just use a BoxCollider2D which may be easier to handle at the beginning.