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I have deployed Kapow RoboServer and Management Console on Debian GNU/Linux 9.5 (stretch) and uploaded some robots to RoboServer but while running robots getting the following exception.
Robot execution with execution id -1-13-f7eab24acc failed. Execution failed. Error starting WebKitBrowser: \njava.lang.RuntimeException: Error starting WebKitBrowser: \n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:40)\n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:21)\n\tat kapow.robot.robomaker.engine.runtime.RuntimeRobotExecutionEngine.executeRobot(RuntimeRobotExecutionEngine.java:181)\n\tat kapow.robot.roborunner.exeeng.RobotExecutable.run(RobotExecutable.java:276)\n\tat kapow.framework.exeeng.StopRequestSupportingFifoBasedQueueingExecutionEngine.doExecute(StopRequestSupportingFifoBasedQueueingExecutionEngine.java:221)\n\tat
kapow.framework.exeeng.StopRequestSupportingFifoBasedQueueingExecutionEngine.execute(StopRequestSupportingFifoBasedQueueingExecutionEngine.java:112)\n\tat kapow.robot.rqlserver.rql.ExecuteRQLRequest.execute(ExecuteRQLRequest.java:342)\n\tat kapow.robot.rqlserver.engine.RQLEngine.exceptionThrowingExecute(RQLEngine.java:262)\n\tat kapow.robot.rqlserver.engine.RQLEngine.execute(RQLEngine.java:211)\n\tat com.kapowtech.robosuite.service.server.RoboServerBridgeSimpleRQLEngine.request(RoboServerBridgeSimpleRQLEngine.java:134)\n\tat com.kapowtech.robosuite.service.socket.multiplexing.MultiplexingResponseHandler.run(MultiplexingResponseHandler.java:52)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: Error starting WebKitBrowser: \n\tat com.kapowtech.webkit.browser.WebKitBrowser.<init>(WebKitBrowser.java:165)\n\tat com.kapowtech.browser.BrowserFactory.createWebKitBrowser(BrowserFactory.java:46)\n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:30)\n\t... 13 more\nCaused by: java.lang.Exception: \n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.<init>(WebKitBrowserProcess.java:300)\n\tat com.kapowtech.webkit.browser.WebKitBrowser.<init>(WebKitBrowser.java:147)\n\t... 15 more\nCaused by: java.util.concurrent.TimeoutException\n\tat java.util.concurrent.Exchanger.exchange(Exchanger.java:626)\n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.getPort(WebKitBrowserProcess.java:344)\n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.<init>(WebKitBrowserProcess.java:293)\n\t... 16 more\n
Robot execution with execution id -1-13-f7eab24acc failed. Execution failed. Error starting WebKitBrowser: \njava.lang.RuntimeException: Error starting WebKitBrowser: \n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:40)\n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:21)\n\tat kapow.robot.robomaker.engine.runtime.RuntimeRobotExecutionEngine.executeRobot(RuntimeRobotExecutionEngine.java:181)\n\tat kapow.robot.roborunner.exeeng.RobotExecutable.run(RobotExecutable.java:276)\n\tat kapow.framework.exeeng.StopRequestSupportingFifoBasedQueueingExecutionEngine.doExecute(StopRequestSupportingFifoBasedQueueingExecutionEngine.java:221)\n\tat
kapow.framework.exeeng.StopRequestSupportingFifoBasedQueueingExecutionEngine.execute(StopRequestSupportingFifoBasedQueueingExecutionEngine.java:112)\n\tat kapow.robot.rqlserver.rql.ExecuteRQLRequest.execute(ExecuteRQLRequest.java:342)\n\tat kapow.robot.rqlserver.engine.RQLEngine.exceptionThrowingExecute(RQLEngine.java:262)\n\tat kapow.robot.rqlserver.engine.RQLEngine.execute(RQLEngine.java:211)\n\tat com.kapowtech.robosuite.service.server.RoboServerBridgeSimpleRQLEngine.request(RoboServerBridgeSimpleRQLEngine.java:134)\n\tat com.kapowtech.robosuite.service.socket.multiplexing.MultiplexingResponseHandler.run(MultiplexingResponseHandler.java:52)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: Error starting WebKitBrowser: \n\tat com.kapowtech.webkit.browser.WebKitBrowser.<init>(WebKitBrowser.java:165)\n\tat com.kapowtech.browser.BrowserFactory.createWebKitBrowser(BrowserFactory.java:46)\n\tat com.kapowtech.browser.BrowserFactory.createBrowser(BrowserFactory.java:30)\n\t... 13 more\nCaused by: java.lang.Exception: \n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.<init>(WebKitBrowserProcess.java:300)\n\tat com.kapowtech.webkit.browser.WebKitBrowser.<init>(WebKitBrowser.java:147)\n\t... 15 more\nCaused by: java.util.concurrent.TimeoutException\n\tat java.util.concurrent.Exchanger.exchange(Exchanger.java:626)\n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.getPort(WebKitBrowserProcess.java:344)\n\tat com.kapowtech.webkit.browser.WebKitBrowserProcess.<init>(WebKitBrowserProcess.java:293)\n\t... 16 more\n