Could not find Simulator log

I am using appium 1.5.3. Every time I am running a test, I got error
ERROR - System.InvalidOperationException: An unknown server-side error occurred while processing the command. Original error: Could not find Simulator log

The test running fine when I go back to 1.4.13

This is the whole errors:
10:15:53 AM - ERROR - System.InvalidOperationException: An unknown server-side error occurred while processing the command. Original error: Could not find Simulator log
at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError (OpenQA.Selenium.Remote.Response errorResponse) <0x78390e0 + 0x001f7> in :0
at OpenQA.Selenium.Remote.RemoteWebDriver.Execute (System.String driverCommandToExecute, System.Collections.Generic.Dictionary2 parameters) <0x75e6c00 + 0x0012f> in <filename unknown>:0 at OpenQA.Selenium.Remote.RemoteWebDriver.StartSession (ICapabilities desiredCapabilities) <0x75e6a50 + 0x0009b> in <filename unknown>:0 at OpenQA.Selenium.Remote.RemoteWebDriver..ctor (ICommandExecutor commandExecutor, ICapabilities desiredCapabilities) <0x75e65e0 + 0x0007f> in <filename unknown>:0 at OpenQA.Selenium.Appium.AppiumDriver1[W]…ctor (ICommandExecutor commandExecutor, ICapabilities desiredCapabilities) <0x75e64a8 + 0x0001f> in :0
at OpenQA.Selenium.Appium.AppiumDriver1[W]..ctor (System.Uri remoteAddress, ICapabilities desiredCapabilities, TimeSpan commandTimeout) <0x75bada8 + 0x0005b> in <filename unknown>:0 at OpenQA.Selenium.Appium.iOS.IOSDriver1[W]…ctor (System.Uri remoteAddress, OpenQA.Selenium.Remote.DesiredCapabilities desiredCapabilities, TimeSpan commandTimeout) <0x75bacb0 + 0x00097> in :0
at Automation.Testing.Selenium.ZooskIOSDriver`1[W]…ctor (System.Uri remoteAddress, OpenQA.Selenium.Remote.DesiredCapabilities desiredCapabilities) <0x75baaf8 + 0x0009f> in :0
at Automation.Testing.iOS.iOSClient.StartAutomation (iOSDevice device, System.String devId) <0x75b99f8 + 0x009bb> in :0
at Automation.Tests.iOS.iOSTest.ClassSetup () <0x75a4040 + 0x0036b> in :0
at Automation.Testing.TestInfo.ClassSetup () <0x75a4018 + 0x00013> in :0
at Automation.Testing.TestExecutor._RunTests (Boolean handleTestExceptions, Automation.Testing.TestInfo[] tests) <0x75a0798 + 0x007fb> in :0
10:15:53 AM - FAILURE - 1.) Automation Run @ “iOS.iPhone.Login.LoginTest” 6/20/2016 10:14 AM — EXPECTED: True ACTUAL: False

Anyone getting the same issue? Thanks for your help