Fail the install when nothing can confirm it instead of crashing

CHANGELOG.md

@@ -43,6 +43,7 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 - Fixed tracker start date being off by a day when adding tracking to an entry with read history in some timezones ([@hazptr](https://github.com/hazptr)) ([#4049](https://github.com/mihonapp/mihon/pull/4049))
 - Fixed the paged reader crashing when moving to another chapter after a wide page of a neighbouring chapter was split ([@AntsyLich](https://github.com/AntsyLich))
 - Fixed a crash when opening the filters of a source with an invalid filter ([@AntsyLich](https://github.com/AntsyLich))
+- Fixed a crash when installing an extension on a device where the system installer can't ask for confirmation ([@AntsyLich](https://github.com/AntsyLich))
 
 ## [v0.21.1] - 2026-10-12
 ### Fixed

app/src/main/java/eu/kanade/tachiyomi/extension/installer/PackageInstallerInstaller.kt

@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.extension.installer
 import android.annotation.SuppressLint
 import android.app.PendingIntent
 import android.app.Service
+import android.content.ActivityNotFoundException
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
@@ -57,7 +58,16 @@ class PackageInstallerInstaller(private val service: Service) : Installer(servic
                         return
                     }
                     userAction.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                    service.startActivity(userAction)
+                    try {
+                        service.startActivity(userAction)
+                    } catch (e: ActivityNotFoundException) {
+                        // Some devices have the system installer's confirmation screen disabled or removed
+                        logcat(LogPriority.WARN, e) { "Nothing can confirm the install" }
+                        activeSession?.let { (_, sessionId) ->
+                            runCatching { packageInstaller.abandonSession(sessionId) }
+                        }
+                        continueQueue(InstallStep.Error)
+                    }
                 }
                 PackageInstaller.STATUS_FAILURE_ABORTED -> {
                     continueQueue(InstallStep.Idle)