ANdroid - Run APK file after edited using apktool get error : [INSTALL_PARSE_FAILED_NO_CERTIFICATES]

Question

I have an APK file name : Splash.apk. First i decode it using apktool

apk d Splash.apk

Then i edit Manifest, XML. Finally I export project to APK file name : EditedSpash.apk.

apk b Splash

When i run EditedSpash.apk on emulator. I got error. Do you explain it for me ?

adb install EditedSplash.apk

Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES]

Answer 1

you should sign to apk before install.

1)keytool -genkey -keystore (name).keystore -validity 10000 -alias (name) -keyalg rsa

2)answer some question (ex:name, company...

3)after make keystore file,you combine apk and ketstore

if these file are located same directory

jarsigner -keystore （name）.keystore -verbose LunarLander.apk （name）

apk size increase 2kb+;

after this install apk to avd