: This is the most reliable solution. Steam will scan your installation and redownload any missing files. Steam Library and right-click on Skyrim Legendary Edition . Select Properties > Installed Files (or Local Files ).
Instead of downloading a file, let Steam fix itself. This is the only 100% safe way to ensure you have the authentic, correct version of the file. steam_api.dll free download - DLL-files.com skyrim legendary edition steam-api.dll download
If the error persists after verification: : This is the most reliable solution