Error on using Custom Capability in Katalon

Hello Team,

I am trying to use Custom Capability in Katalon my test cases using Mobile Emulation feature of Google Chrome.

I have set Custom Capabilities as below

When I run the test case using this Custom Capability I am getting below error :

Reason:
com.kms.katalon.core.exception.StepFailedException: Unable to open browser with url: ''
	at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.stepFailed(WebUIKeywordMain.groovy:64)
	at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.runKeyword(WebUIKeywordMain.groovy:26)
	at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.openBrowser(OpenBrowserKeyword.groovy:81)
	at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.execute(OpenBrowserKeyword.groovy:67)
	at com.kms.katalon.core.keyword.internal.KeywordExecutor.executeKeywordForPlatform(KeywordExecutor.groovy:56)
	at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords.openBrowser(WebUiBuiltInKeywords.groovy:60)
	at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords$openBrowser.call(Unknown Source)
	at QATB-106 - Test the Email Sign Up Pop UI Text.run(QATB-106 - Test the Email Sign Up Pop UI Text:16)
	at com.kms.katalon.core.main.ScriptEngine.run(ScriptEngine.java:194)
	at com.kms.katalon.core.main.ScriptEngine.runScriptAsRawText(ScriptEngine.java:119)
	at com.kms.katalon.core.main.TestCaseExecutor.runScript(TestCaseExecutor.java:337)
	at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:328)
	at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:307)
	at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:299)
	at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:233)
	at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:114)
	at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:105)
	at com.kms.katalon.core.main.TestCaseMain$runTestCase$0.call(Unknown Source)
	at TempTestCase1560186125756.run(TempTestCase1560186125756.groovy:21)
Caused by: org.openqa.selenium.InvalidArgumentException: invalid argument: cannot parse capability: goog:chromeOptions
from invalid argument: cannot parse mobileEmulation
from invalid argument: 'deviceName' must be used alone
  (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Mac OS X 10.14.5 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 50 milliseconds
Build info: version: '3.7.1', revision: '8a0099a', time: '2017-11-06T21:07:36.161Z'
System info: host: 'MMUKKAR.local', ip: 'fe80:0:0:0:a2:4f57:3ffb:d6b2%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.14.5', java.version: '1.8.0_181'
Driver info: driver.version: CChromeDriver
	at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
	at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
	at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new$0(JsonWireProtocolResponse.java:53)
	at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction$2(JsonWireProtocolResponse.java:91)
	at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:123)
	at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
	at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
	at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)
	at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:600)
	at com.kms.katalon.selenium.driver.CChromeDriver.execute(CChromeDriver.java:20)
	at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:219)
	at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:142)
	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:181)
	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:147)
	at com.kms.katalon.selenium.driver.CChromeDriver.<init>(CChromeDriver.java:13)
	at com.kms.katalon.core.webui.driver.DriverFactory.createNewChromeDriver(DriverFactory.java:281)
	at com.kms.katalon.core.webui.driver.DriverFactory.startNewBrowser(DriverFactory.java:243)
	at com.kms.katalon.core.webui.driver.DriverFactory.openWebDriver(DriverFactory.java:188)
	at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword$_openBrowser_closure1.doCall(OpenBrowserKeyword.groovy:74)
	at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword$_openBrowser_closure1.call(OpenBrowserKeyword.groovy)
	at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.runKeyword(WebUIKeywordMain.groovy:20)
	... 17 more