# Unable to start application with error 'java.util.concurrent.ExecutionException: org.openqa.selenium.WebDriverException: Connection refused: connect' **URL:** \ **Category:** Mobile Testing\ **Tags:** mobile-testing\ **Created:** [November 11, 2022, 6:39pm UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554 "2022-11-11T18:39:55Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![sengkuinjoanne.lee](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/sengkuinjoanne.lee/32/20464_2.png) [@sengkuinjoanne.lee](https://forum.katalon.com/u/sengkuinjoanne.lee)\ **Post date:** [November 11, 2022, 6:39pm UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554/1 "2022-11-11T18:39:55Z")
Hi, Was trying to perform the capturing via Mobile recorder and I was prompted with this error after clicking on the [Start] button. Appreciate some help. java.util.concurrent.ExecutionException: org.openqa.selenium.WebDriverException: Connection refused: connect Build info: version: ‘3.141.59’, revision: ‘e82be7d358’, time: ‘2018-11-14T08:25:53’ System info: host: ‘’, ip: ‘xxx.xx.x.xx’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version: ‘10.0’, java.version: ‘1.8.0\_282’ Driver info: driver.version: SwipeableAndroidDriver at com.kms.katalon.composer.components.impl.dialogs.ProgressMonitorDialogWithThread.runAndWait(ProgressMonitorDialogWithThread.java:49) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite$12.run(MobileLocalAppComposite.java:488) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122) Caused by: org.openqa.selenium.WebDriverException: Connection refused: connect Build info: version: ‘3.141.59’, revision: ‘e82be7d358’, time: ‘2018-11-14T08:25:53’ System info: host: ‘EDLP2022-012’, ip: ‘192.168.1.37’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version: ‘10.0’, java.version: ‘1.8.0\_282’ Driver info: driver.version: SwipeableAndroidDriver at io.appium.java\_client.remote.AppiumCommandExecutor.lambda$5(AppiumCommandExecutor.java:251) at io.appium.java\_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:250) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552) at io.appium.java\_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42) at io.appium.java\_client.AppiumDriver.execute(AppiumDriver.java:1) at io.appium.java\_client.android.AndroidDriver.execute(AndroidDriver.java:1) at com.kms.katalon.core.appium.driver.SwipeableAndroidDriver.execute(SwipeableAndroidDriver.java:1) at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:213) at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:131) at io.appium.java\_client.DefaultGenericMobileDriver.(DefaultGenericMobileDriver.java:38) at io.appium.java\_client.AppiumDriver.(AppiumDriver.java:84) at io.appium.java\_client.android.AndroidDriver.(AndroidDriver.java:85) at com.kms.katalon.core.appium.driver.SwipeableAndroidDriver.(SwipeableAndroidDriver.java:24) at com.kms.katalon.core.appium.driver.AppiumDriverManager.createMobileDriver(AppiumDriverManager.java:503) at com.kms.katalon.core.appium.driver.AppiumDriverManager.createMobileDriver(AppiumDriverManager.java:485) at com.kms.katalon.core.mobile.keyword.internal.MobileDriverFactory.startLocalMobileDriver(MobileDriverFactory.java:539) at com.kms.katalon.composer.mobile.objectspy.dialog.MobileInspectorController.startMobileApp(MobileInspectorController.java:196) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite.startLocalAppAsNormal(MobileLocalAppComposite.java:561) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite.smartStartAndroidApp(MobileLocalAppComposite.java:545) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite.smartStartApp(MobileLocalAppComposite.java:523) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite.access$18(MobileLocalAppComposite.java:517) at com.kms.katalon.composer.mobile.objectspy.components.MobileLocalAppComposite$12$1.call(MobileLocalAppComposite.java:494) at com.kms.katalon.composer.components.impl.dialogs.ProgressMonitorDialogWithThread.startThreadAndWait(ProgressMonitorDialogWithThread.java:36) at com.kms.katalon.composer.components.impl.dialogs.ProgressMonitorDialogWithThread.runAndWait(ProgressMonitorDialogWithThread.java:48) … 2 more Caused by: java.net.ConnectException: Connection refused: connect at okhttp3.internal.platform.Platform.connectSocket(Platform.java:129) at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:245) at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:165) at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257) at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135) at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114) at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) at okhttp3.RealCall.execute(RealCall.java:77) at org.openqa.selenium.remote.internal.OkHttpClient.execute(OkHttpClient.java:103) at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:105) at io.appium.java\_client.remote.AppiumCommandExecutor$1.createSession(AppiumCommandExecutor.java:186) at io.appium.java\_client.remote.AppiumCommandExecutor.createSession(AppiumCommandExecutor.java:217) at io.appium.java\_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:239) … 24 more ---
**Author:** ![ari1411.lobos](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/ari1411.lobos/32/23870_2.png) [@ari1411.lobos](https://forum.katalon.com/u/ari1411.lobos)\ **Post date:** [October 30, 2023, 7:05pm UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554/2 "2023-10-30T19:05:45Z")
Hello, were you able to solve it? I have the same error but with the desktop recording. ---
**Author:** ![prema.venkatesan1](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/prema.venkatesan1/32/23870_2.png) [@prema.venkatesan1](https://forum.katalon.com/u/prema.venkatesan1)\ **Post date:** [June 19, 2024, 1:11pm UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554/3 "2024-06-19T13:11:47Z")
Hello @ari1411.lobos were you able to solve the desktop recording error ? I am also getting the same error ---
**Author:** ![system](https://europe1.discourse-cdn.com/katalon/original/3X/d/5/d55596ab02785a255798e87ede769734747b30c4.svg) [@system](https://forum.katalon.com/u/system)\ **Post date:** [June 19, 2024, 1:11pm UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554/4 "2024-06-19T13:11:47Z")
Hi there, Thank you very much for your topic. Please note that it may take a little while before a member of our community or from Katalon team responds to you. Thanks! ---
**Author:** ![hawefik978](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/hawefik978/32/30227_2.png) [@hawefik978](https://forum.katalon.com/u/hawefik978)\ **Post date:** [May 13, 2025, 5:43am UTC](https://forum.katalon.com/t/unable-to-start-application-with-error-java-util-concurrent-executionexception-org-openqa-selenium-webdriverexception-connection-refused-connect/80554/5 "2025-05-13T05:43:31Z")
you should run cmd WinnAppDriver.exe