org.openqa.selenium.WebDriverException: null value in entry: message=null Build info: version: '4.0.0-beta-3', revision: '5d108f9a67' System info: host: 'PCLUMIS154', ip: '192.168.99.1', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '11.0.1' Driver info: org.openqa.selenium.remote.RemoteWebDriver Command: [3d219509-f310-4ca3-9bac-25ce9d95237e, findElement {using=tag name, value=input}] Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 88.0.1, javascriptEnabled: true, moz:accessibilityChecks: false, moz:buildID: 20210504152106, moz:debuggerAddress: localhost:42773, moz:geckodriverVersion: 0.29.1, moz:headless: true, moz:processID: 2093, moz:profile: /tmp/rust_mozprofiletA4R8t, moz:shutdownTimeout: 60000, moz:useNonSpecCompliantPointerOrigin: false, moz:webdriverClick: true, pageLoadStrategy: normal, platform: LINUX, platformName: LINUX, platformVersion: 4.9.93-boot2docker, rotatable: false, se:cdp: ws://172.17.0.3:4444/sessio..., se:cdpVersion: 85, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify} Session ID: 3d219509-f310-4ca3-9bac-25ce9d95237e at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:198) at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:131) at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:52) at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:184) at org.openqa.selenium.remote.TracedCommandExecutor.execute(TracedCommandExecutor.java:39) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:619) at org.openqa.selenium.remote.RemoteWebDriver$Mechanism$2.findElement(RemoteWebDriver.java:1258) at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:386) at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:380) (...)