Not able to execute the sample test using coteafs-appium framework

[Rabindra184]

I am trying to use your framework for mobile automation.But it is throwing the below error while executing.
java.lang.NullPointerException: Cannot invoke "com.github.wasiqb.coteafs.appium.config.server.ServerSetting.isExternal()" because "this.setting" is null

at com.github.wasiqb.coteafs.appium.service.AppiumServer.<init>(AppiumServer.java:98)
at com.github.wasiqb.coetafs.appium.saucedemo.android.SauceDemoTest.setupTest(SauceDemoTest.java:39)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.testng.internal.invokers.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:135)
at org.testng.internal.invokers.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:65)
at org.testng.internal.invokers.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:381)
at org.testng.internal.invokers.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:319)
at org.testng.TestRunner.invokeTestConfigurations(TestRunner.java:645)
at org.testng.TestRunner.beforeRun(TestRunner.java:634)
at org.testng.TestRunner.run(TestRunner.java:596)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:429)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:423)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:383)
at org.testng.SuiteRunner.run(SuiteRunner.java:326)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:95)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1249)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1169)
at org.testng.TestNG.runSuites(TestNG.java:1092)
at org.testng.TestNG.run(TestNG.java:1060)
at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:109)

I am also not sure what is the appium path need to be provided as I am using the the below appium version.
2.0.0-beta.46