Termux has different signing keys

[yirod3721]

Problem description

i used to have termux from the play store but then i decided to swtich to f-droid so i uninstalled termux and and downloaded the f-droid version but it says app not installed and SAI says the shared signatures do not match

Steps to reproduce the behavior.

download termux from play store
uninstall
download from f-droid
then try to install it

What is the expected behavior?

shouldnt have the same signing key as the other versions

System information

• Termux application version:
• Android OS version: 8.1
• Device model:Redmi note 5

[agnostic-apollo]

https://github.com/termux/termux-app#Installation

[sylirre]

Having same signature key isn't possible just because we don't have this key. It is even unknown whether Fornwall had it, because Play Store offers own signature keys that are not downloadable.

[yirod3721]

so what do i do now

[yirod3721]

i followed the instructions deleted everything termux related and it still wont work

[sylirre]

@yirod3721 See previously posted link by Agnostic Apollo: #3311 (comment)

Briefly, you need to do these steps:

0. Step for root users: open root shell and run rm -rf /data/data/com.termux/files. This is needed to prevent cases where something left on file system after uninstalling the app. You can use other terminal app for this but make sure shell is running under su.
1. Delete the Termux app and all add-ons like Termux:Boot, Termux:API, Termux:Tasker, Termux:Float, Termux:Styling, Termux:Widget through Android Settings --> Applications. Even purchased add-ons should be uninstalled.
2. Open F-Droid: https://f-droid.org/packages/com.termux/
3. Download the latest available APK file and install it.
4. If you ever used some Termux add-ons from Play Store, then use F-Droid search to find and then install add-ons: https://search.f-droid.org/?q=Termux

Play Store is a no-no for now, considering the current situation. The official release distribution is done through F-Droid only,

[sylirre]

wont work doesn't really explain the problem. I can't reproduce it.

[yirod3721]

@sylirre i followed those instructions and I even found a similar issue in the termux:gui page(termux/termux-gui#4 think that it is the same problem) and it still didnt work
this is the error i get, INSTALL_FAILED_SHARED_USER_INCOMPATIBLE, signatures do not match previously installed version

[agnostic-apollo]

Provide output of adb shell "pm list packages -u --user 0 | grep termux" with an adb shell or su -c "pm list packages -u --user 0 | grep termux" with a root shell or out="$(/system/bin/pm list packages -u --user 0 2>&1 </dev/null)"; echo "$out" | grep termux if you have termux app already installed.

https://developer.android.com/studio/command-line/adb

[yirod3721]

i just tried it with adb and it says install failed shared user incompatible

[yirod3721]

@agnostic-apollo it says package:com.termux.api

[yirod3721]

it just worked
thanks a 1000

[yirod3721]

i had to uninstall com.termux.api

[yirod3721]

i dont have a laptop or pc so i use it for programming

[agnostic-apollo]

Welcome.

It's more likely that Termux:API app was shown in Apps list of Android Settings and you didn't see it. However, in some cases all apps may not show in apps list, and pm list command may be required. For example, if pm uninstall is used to uninstall an app with the -k flag to uninstall an app while keeping its app data directory, then -u flag will need to be passed to pm list to list the uninstalled app and app won't show in apps list other than an activity entry in likely recent androids only, but that's likely not your case since running pm uninstall after pm uninstall -k would fail with Failure [not installed for 0] and app needs to be reinstalled first. This may be related to some sharedUserId or Android issue other than -k usage. I noticed this in secondary user as well without using -k.