Cannot start Appium with IOS real device Appium 1.5.3 - ios

Question

It worked in the past. But recently I can't start Appium with iOS real devices anymore. My environment is as follow:
Appium 1.5.3
XCode 7.3
iOS 9.1
And I use selenium and io.appium as follow
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.53.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.appium</groupId>
<artifactId>java-client</artifactId>
<version>4.0.0</version>
</dependency>
Whenever I start the test, I always get this exception when creating iOSDriver
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Removing com.project.classname failed (WARNING: The server did not provide any stacktrace information)
I googled that from iOS 10 and XCode 8 they don't support UI Automation. I still use iOS 9 and XCode 7. Does anyone have the same problem and any solutions. I am kind of stuck here. Thanks
This is log file from Appium
[debug] [iOS] Running ios real device reset flow
[debug] [iOS] Full reset requested. Will try to uninstall the app 'com.project.classname'.
[debug] [iOS] Creating iDevice object with udid 5571568ad437d17f705f6645d73ef78ea5e72e7b
[iOS] Could not remove 'com.project.classname' from device
[MJSONWP] Encountered internal error running command: Error: Removing com.project.classname failed
at /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/appium-ios-driver/node_modules/node-idevice/main.js:145:6
at ChildProcess.exithandler (child_process.js:193:7)
at emitTwo (events.js:100:13)
at ChildProcess.emit (events.js:185:7)
at maybeClose (internal/child_process.js:850:16)
at Socket.<anonymous> (internal/child_process.js:323:11)
at emitOne (events.js:90:13)
at Socket.emit (events.js:182:7)
at Pipe._onclose (net.js:475:12)
[HTTP] <-- POST /wd/hub/session 500 973 ms - 175

Answer 1

Try to see if the problem is related to libimobiledevice or device lockdown
Use that command to install it:
brew install libimobiledevice --HEAD
also try to use this command
sudo chmod -R 777 /var/db/lockdown/