java -jar C:pathtoselenium-server-standalone-3.7.1.jar -role hub

java -Dwebdriver.opera.driver=C:pathtooperadriver.exe -
        Dwebdriver.edge.driver=C:pathtoMicrosoftWebDriver.exe -jar
        C:pathtoselenium-server-standalone-
        3.7.1.jar -role node -hub http://mylocalhost:4444/grid/register
        -browser "browserName=opera,maxInstances=5,platform=Windows" -
        browser "browserName=edge,maxInstances=5,platform=Windows"

WebDriver driver;
               String nodeURL;
               nodeURL = "http://mylocalhost:5555/wd/hub";
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setBrowserName("opera");
        capabilities.setPlatform(Platform.WINDOWS);
        driver = new RemoteWebDriver(new URL(nodeURL), capabilities);
        driver.get("https://www.google.ru/");

WebDriver driver;
               String nodeURL;
               nodeURL = "http://mylocalhost:5555/wd/hub";
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setBrowserName("opera");
        capabilities.setPlatform(Platform.WINDOWS);
        driver = new RemoteWebDriver(new URL(nodeURL), capabilities);
        driver.get("https://www.google.ru/");

org.openqa.selenium.WebDriverException: unknown error: cannot find Opera binary

org.openqa.selenium.SessionNotCreatedException: Unable to create new service: ChromeDriverService