FixCydia

Fix Cydia Error “Could Not Open File /var/lib/dpkg/status”

iOS 9

1. Download CydiaFix9.zip
2. Install Cydia Impactor http://www.cydiaimpactor.com/
3. Download ifunbox www.i-funbox.com

iFunBox

Extract the CydiaFix9.zip, and you'll receive a folder 'lib', and a '.IPA' file. Drag the 'lib' folder, into the iBooks within iFunBox.

Command line

$ su
Password:alpine
$ cp -R /var/mobile/Media/Books/lib /var
$ mkdir /var/log/apt

You have three ways

Terminal on iPhone

Drag the 'MobileTerminal.ipa' into Cydia Impactor.

open Terminal on iPhone and input Command line

Use USB Tunnel on ifunbox（only windows）

I don't have a Windows system

Use iPhoneSSH_USB on MacOS

Download iPhoneSSH_USB.zip

Extract the iPhoneSSH_USB.zip

open Termail on MacOS

$ cd path/iPhoneSSH_USB/python-client
$ python tcprelay.py -t 22:2222 &
# open other Termail Window
$ ssh -p 2222 root@localhost

input Command line

last step reboot your iPhone

Good Luck!

Link

https://www.se7ensins.com/forums/threads/how-to-fix-cydia-could-not-open-file-ios-9-10.1557547/#post-12524330