[Nexus 6P Q&A, Help & Troubleshooting] ArmStrongDickPunch:
As the title States I have updated to version n4f26o and (on Jan security patch it worked fine) I'm trying to use Swift black (which has full support for 7.1.1) but I keep getting an error and was wondering if anyone could help? Thanks

» [android]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/android.SwiftBlack-signed.apk (Permission denied)

» [android]: Installation of "android" has failed.

» [com.android.bluetooth]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.bluetooth.SwiftBlack-signed.apk (Permission denied)

» [com.android.bluetooth]: Installation of "com.android.bluetooth" has failed.

» [com.google.android.calculator]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.calculator.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.calculator]: Installation of "com.google.android.calculator" has failed.

» [com.google.android.calendar]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.calendar.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.calendar]: Installation of "com.google.android.calendar" has failed.

» [com.android.server.telecom]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.server.telecom.SwiftBlack-signed.apk (Permission denied)

» [com.android.server.telecom]: Installation of "com.android.server.telecom" has failed.

» [com.android.chrome]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.chrome.SwiftBlack-signed.apk (Permission denied)

» [com.android.chrome]: Installation of "com.android.chrome" has failed.

» [com.google.android.deskclock]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.deskclock.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.deskclock]: Installation of "com.google.android.deskclock" has failed.

» [com.google.android.contacts]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.contacts.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.contacts]: Installation of "com.google.android.contacts" has failed.

» [com.google.android.apps.docs.editors.docs]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.docs.editors.docs.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.docs.editors.docs]: Installation of "com.google.android.apps.docs.editors.docs" has failed.

» [com.google.android.apps.docs]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.docs.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.docs]: Installation of "com.google.android.apps.docs" has failed.

» [com.estrongs.android.pop]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.estrongs.android.pop.SwiftBlack-signed.apk (Permission denied)

» [com.estrongs.android.pop]: Installation of "com.estrongs.android.pop" has failed.

» [com.facebook.katana]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.facebook.katana.SwiftBlack-signed.apk (Permission denied)

» [com.facebook.katana]: Installation of "com.facebook.katana" has failed.

» [com.android.documentsui]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.documentsui.SwiftBlack-signed.apk (Permission denied)

» [com.android.documentsui]: Installation of "com.android.documentsui" has failed.

» [com.google.android.inputmethod.latin]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.inputmethod.latin.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.inputmethod.latin]: Installation of "com.google.android.inputmethod.latin" has failed.

» [com.google.android.gm]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.gm.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.gm]: Installation of "com.google.android.gm" has failed.

» [com.google.android.googlequicksearchbox]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.googlequicksearchbox.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.googlequicksearchbox]: Installation of "com.google.android.googlequicksearchbox" has failed.

» [com.google.android.music]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.music.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.music]: Installation of "com.google.android.music" has failed.

» [com.android.vending]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.vending.SwiftBlack-signed.apk (Permission denied)

» [com.android.vending]: Installation of "com.android.vending" has failed.

» [com.google.android.gms]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.gms.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.gms]: Installation of "com.google.android.gms" has failed.

» [com.google.android.tts]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.tts.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.tts]: Installation of "com.google.android.tts" has failed.

» [com.google.android.apps.plus]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.plus.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.plus]: Installation of "com.google.android.apps.plus" has failed.

» [com.google.android.talk]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.talk.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.talk]: Installation of "com.google.android.talk" has failed.

» [com.google.android.apps.chromecast.app]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.chromecast.app.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.chromecast.app]: Installation of "com.google.android.apps.chromecast.app" has failed.

» [com.google.android.keep]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.keep.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.keep]: Installation of "com.google.android.keep" has failed.

» [com.google.android.apps.maps]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.maps.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.maps]: Installation of "com.google.android.apps.maps" has failed.

» [com.android.providers.media]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.providers.media.SwiftBlack-signed.apk (Permission denied)

» [com.android.providers.media]: Installation of "com.android.providers.media" has failed.

» [com.google.android.apps.messaging]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.messaging.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.messaging]: Installation of "com.google.android.apps.messaging" has failed.

» [com.facebook.orca]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.facebook.orca.SwiftBlack-signed.apk (Permission denied)

» [com.facebook.orca]: Installation of "com.facebook.orca" has failed.

» [com.teslacoilsw.launcher]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.teslacoilsw.launcher.SwiftBlack-signed.apk (Permission denied)

» [com.teslacoilsw.launcher]: Installation of "com.teslacoilsw.launcher" has failed.

» [com.google.android.packageinstaller]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.packageinstaller.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.packageinstaller]: Installation of "com.google.android.packageinstaller" has failed.

» [com.google.android.dialer]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.dialer.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.dialer]: Installation of "com.google.android.dialer" has failed.

» [com.android.phone]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.phone.SwiftBlack-signed.apk (Permission denied)

» [com.android.phone]: Installation of "com.android.phone" has failed.

» [com.google.android.apps.nexuslauncher]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.nexuslauncher.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.nexuslauncher]: Installation of "com.google.android.apps.nexuslauncher" has failed.

» [com.android.settings]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.settings.SwiftBlack-signed.apk (Permission denied)

» [com.android.settings]: Installation of "com.android.settings" has failed.

» [com.simplecity.amp_pro]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.simplecity.amp_pro.SwiftBlack-signed.apk (Permission denied)

» [com.simplecity.amp_pro]: Installation of "com.simplecity.amp_pro" has failed.

» [com.skype.raider]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.skype.raider.SwiftBlack-signed.apk (Permission denied)

» [com.skype.raider]: Installation of "com.skype.raider" has failed.

» [eu.chainfire.supersu]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/eu.chainfire.supersu.SwiftBlack-signed.apk (Permission denied)

» [eu.chainfire.supersu]: Installation of "eu.chainfire.supersu" has failed.

» [com.android.systemui]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.android.systemui.SwiftBlack-signed.apk (Permission denied)

» [com.android.systemui]: Installation of "com.android.systemui" has failed.

» [com.google.android.apps.translate]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.apps.translate.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.apps.translate]: Installation of "com.google.android.apps.translate" has failed.

» [com.google.android.youtube]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.google.android.youtube.SwiftBlack-signed.apk (Permission denied)

» [com.google.android.youtube]: Installation of "com.google.android.youtube" has failed.

» [com.ebay.mobile]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/com.ebay.mobile.SwiftBlack-signed.apk (Permission denied)

» [com.ebay.mobile]: Installation of "com.ebay.mobile" has failed.

» [projekt.substratum]: APK could not be signed. java.io.FileNotFoundException: /storage/emulated/0/.substratum/projekt.substratum.SwiftBlack-signed.apk (Permission denied)

» [projekt.substratum]: Installation of "projekt.substratum" has failed.