Why doesn't the project run in Firefox?

Question

Java

I'm trying to run my project with serenity in firefox browser, but it gives me an error (net.thucydides.core.webdriver.DriverConfigurationError: Could not instantiate new WebDriver instance of type class org.openqa.selenium.firefox.FirefoxDriver (The path to the driver executable The latest version can be downloaded from https: //github.executable The path to the driver executable must be set by the webdriver.gecko.driver system property; com/mozilla/geckodriver/releases ). See below for more details.) It launches through chrome and ej, but with muff this error ... I have the browser itself. Can you tell me what could be the reason?