Help!!! Error starting

Bought the game the incentive is downloaded. when you start the game the error game shader game_shader_dx9.dll trying to override a base shader bms_flare. re all trying. help to solve this problem

Hi! Try right-clicking the game in your Steam Library, go to “Properties”, then “Local files” and click “Verify integrity of game cache…”. It will then check if everything downloaded correctly.

checked the cache of the game he was fine.

I will try to delete and new game download

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.