Laravel : problem with mime types, when no guessers available

Im Learning Laravel right now and tried to use store() function when after submiting form i got error. it says check php.ini for enable extension php_fileinfo.dll, so i did it and still the same problem. i tried to check everything but nothing helped. Im using MAMP. So i tried the phpinfo in localhost/MAMP adress, where i found what php ini i already using. I copied the adress and opened in explorer and i searched for that extension and it was not commented like others said, it was completely missing from that file. so i inserted it, saved and now it works. I just wanted to tell you that, maybe someone have same issues.