How to resolve ConnectionFailedException error

Certified Associate Developer

Hi, I am getting following exception error while running fittnesse test:

_EXCEPTION__:org.openqa.selenium.remote.http.ConnectionFailedException: Unable to establish websocket connection to localhost:57708/.../98ab4b7f-1fff-48c0-88eb-853c24056bed Build info: version: '4.1.2', revision: '9a5a329c5a' System info: host: 'DESKTOP-88E80PB', ip: '10.0.0.252', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_251' Driver info: driver.version: ChromeDriver at org.openqa.selenium.remote.http.netty.NettyWebSocket.<init>(NettyWebSocket.java:104) [selenium-remote-driver-4.1.2.jar] at org.openqa.selenium.remote.http.netty.NettyWebSocket.lambda$create$3(NettyWebSocket.java:137) [selenium-remote-driver-4.1.2.jar] at org.openqa.selenium.remote.http.netty.NettyClient.openSocket(NettyClient.java:118) [selenium-remote-driver-4.1.2.jar] at org.openqa.selenium.devtools.Connection.<init>(Connection.java:77) [selenium-remote-driver-4.1.2.jar] at org.openqa.selenium.chromium.ChromiumDriver.lambda$new$2(ChromiumDriver.java:124) [selenium-chromium-driver-4.1.2.jar] at java.util.Optional.map(Unknown Source) [rt.jar:1.8.0_251] at org.openqa.selenium.chromium.ChromiumDriver.<init>(ChromiumDriver.java:122) [selenium-chromium-driver-4.1.2.jar] at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:106) [selenium-chrome-driver-4.1.2.jar] at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:93) [selenium-chrome-driver-4.1.2.jar] at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:82) [selenium-chrome-driver-4.1.2.jar] at com.appiancorp.ps.automatedtest.fixture.BaseFixture.setupWithBrowser(BaseFixture.java:176) [appian-selenium-api-22.4.jar] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_251] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_251] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_251] at java.lang.reflect.Method.invoke(Unknown Source) [rt.jar:1.8.0_251] at fitnesse.slim.fixtureInteraction.SimpleInteraction.methodInvoke(SimpleInteraction.java:322) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.fixtureInteraction.SimpleInteraction.callMethod(SimpleInteraction.java:307) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.fixtureInteraction.SimpleInteraction.invokeMethod(SimpleInteraction.java:290) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.fixtureInteraction.SimpleInteraction.findAndInvoke(SimpleInteraction.java:217) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.MethodExecutor.findAndInvoke(MethodExecutor.java:18) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.FixtureMethodExecutor.execute(FixtureMethodExecutor.java:18) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.StatementExecutor.getMethodExecutionResult(StatementExecutor.java:139) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.StatementExecutor.call(StatementExecutor.java:112) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.instructions.CallAndOptionalAssignInstruction.executeInternal(CallAndOptionalAssignInstruction.java:30) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.instructions.Instruction.execute(Instruction.java:29) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.ListExecutor$Executive.executeStatement(ListExecutor.java:49) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.ListExecutor$Executive.executeStatements(ListExecutor.java:43) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.ListExecutor.execute(ListExecutor.java:85) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimServer.executeInstructions(SlimServer.java:82) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimServer.processOneSetOfInstructions(SlimServer.java:75) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimServer.tryProcessInstructions(SlimServer.java:62) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimServer.serve(SlimServer.java:47) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimService.handle(SlimService.java:169) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimService.acceptOne(SlimService.java:177) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimService.accept(SlimService.java:139) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimService.startWithFactory(SlimService.java:92) [fitnesse-20211030-standalone.jar:20211030] at fitnesse.slim.SlimService.main(SlimService.java:57) [fitnesse-20211030-standalone.jar:20211030]

Please let me know how to resolve this issue. 

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