Wait for this to complete and then resume your download.
- Removing the Dota 2 files from the downloading folder - *Make sure you pause any downloads before you attempt* To remove the downloaded files that might be causing the game to no longer continue to update/download correctly all you need to do is to open up your steam directory (This is usually defaulted to C:/Program Files/Steam) and open steamapps , downloading and locate any folders associated with the number 570.
- Verify the integrity of the game cache - To verify the integrity of the game cache simply open steam to your library where all your games are, locate Dota 2.
- Refreshing the and files in your steam folder - To refresh these files you must first exit steam completely, then go into your steam directory (defaulted to C:/Program Files/Steam). DO NOT DELETE THIS FILE as it is recommended not to delete the as it may be used later to determine recurring issues.
Now open steam and it will reacquire a new and try to download again.
The next file is more related to menu's and configurations of steam but I have heard people able to resolve their issue by correcting this too.
To refresh this file close steam and go to your steam directory (defaulted to C:/Program Files/Steam).