When I played Herobrine Mansion, I could not break any blocks. Why is that?
I tried to change my controls; I Googled everything. I also can't hold down Mouse Button 1 to keep swinging my sword. I tried switching game modes, but I don't have the commands.
Adventure mode is not the same as Survival mode. In adventure mode, you cannot break blocks at all. Its designed for adventure maps.
If you are in a single player world, go into your options and open your world to LAN, making sure to turn cheats on. Then type "/gamemode 0" in the chat. After that, you should be able to break blocks.
