
1. Firstly, ensure your game is updated to the latest version by launching Steam and checking for any available updates.
2. If your game is already updated, try restarting both your computer and Dota 2 client. This can sometimes resolve the issue.
3. If the problem persists, verify the integrity of your game files through Steam. To do this, right-click on Dota 2 in your Steam library, select Properties, then click on Local Files tab, and press “Verify Integrity of Game Cache”.
4. If verifying the game files does not work, try reinstalling DirectX and Visual C++ Redistributable Packages. You can find instructions for doing this online.
5. Lastly, if none of the above steps work, you may need to contact Valve Support for further assistance.