ideviceinstaller and "could not connect to lockdownd. exiting"

Question

I tried to install the ipa file to my iOS devices with ideviceinstaller, but I got an error - "could not connect to lockdownd. exiting" with some devices not all devices.

I found the lockdown folder stored at /var/lib/lockdown/ and I run the command chmod 777 -R /var/lib/lockdown/. I am sure the devices opened the developer option and UIAutomation.

I restarted the usbmuxd and still not working:

usbmuxd --force-exit
sudo usbmuxd -f -v

What is the problem, and how do I fix it?

Answer 1

This has helped my colleague.

Disconnect all iOS devices, then:

brew uninstall ideviceinstaller
brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo rm -rf /var/db/lockdown/*

Connect an iOS device, and choose "Trust" when prompted, after that:

sudo chmod -R 777 /var/db/lockdown/

Answer 2

I had this problem on Debian 9 connecting to iOS 11 and the solution was:

apt install  --target-release stretch-backports  libimobiledevice6

Apparently version 1.2.1 rather than 1.2.0 of libimobiledevice is required to connect to versions of iOS > 10.