errors to resolve in the java programme in eclipse application

Question

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory at org.asynchttpclient.DefaultAsyncHttpClient.(DefaultAsyncHttpClient.java:49) at org.asynchttpclient.Dsl.asyncHttpClient(Dsl.java:32) at org.openqa.selenium.remote.http.netty.NettyClient.createHttpClient(NettyClient.java:94) at org.openqa.selenium.remote.http.netty.NettyClient.(NettyClient.java:47) at org.openqa.selenium.remote.http.netty.NettyClient$Factory.createClient(NettyClient.java:135) at org.openqa.selenium.remote.HttpCommandExecutor.(HttpCommandExecutor.java:107) at org.openqa.selenium.remote.HttpCommandExecutor.(HttpCommandExecutor.java:94) at org.openqa.selenium.remote.HttpCommandExecutor.(HttpCommandExecutor.java:85) at org.openqa.selenium.remote.service.DriverCommandExecutor.(DriverCommandExecutor.java:80) at org.openqa.selenium.chromium.ChromiumDriverCommandExecutor.(ChromiumDriverCommandExecutor.java:35) at org.openqa.selenium.chrome.ChromeDriver$ChromeDriverCommandExecutor.(ChromeDriver.java:94) at org.openqa.selenium.chrome.ChromeDriver.(ChromeDriver.java:82) at org.openqa.selenium.chrome.ChromeDriver.(ChromeDriver.java:50) at Testing.EMCEATApplicationFormTest.main(EMCEATApplicationFormTest.java:13) Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ... 14 more how to resolve those errors???