| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | Brut.Androlib.AndrolibException: ERROR: 9-patch image not valid | Corrupted nine-patch PNG | Delete or fix the .9.png file. | | W: Config flags size > 52 | Unsupported resource qualifiers | Use original APKTool or ignore (warning). | | Exception in thread "main" brut.androlib.AndrolibException: Could not decode arsc file | Corrupted resources.arsc | Try decompiling without decoding resources (advanced option). | | INSTALL_PARSE_FAILED_NO_CERTIFICATES | APK not signed | Go back and sign the APK. | | INSTALL_FAILED_UPDATE_INCOMPATIBLE | Different signature from installed app | Uninstall original app first. | | Could not decode attr value, using undecoded value | Framework missing | Install framework-res.apk as shown in Part 3. |
Before diving into the steps, it’s crucial to understand the distinction.
: Create custom signatures to sign your modified APKs and import system frameworks to edit system apps. Step-by-Step Tutorial 1. Installation apktool m tutorial
Apktool builds an APK. You must sign it before installing.
Do you need help with a , such as changing an app's language or icon? Fun with Apktool - Free Android Forensics | Error Message | Likely Cause | Solution
Apktool M is a mobile-first powerhouse for Android enthusiasts, allowing you to decompile, modify, and recompile applications directly on your phone without needing a PC. Developed by Maximoff, it bridges the gap between the complex command-line Apktool and the portability of mobile devices.
The primary use of Apktool M is to modify existing apps for educational purposes or localization. | | INSTALL_PARSE_FAILED_NO_CERTIFICATES | APK not signed |
apktool b app -o modified.apk
This checks if license is valid ( move-result v0 holds boolean; if-eqz jumps to cond_license_ok if true).
apktool d myapp.apk # replace res/drawable-hdpi/ic_launcher.png apktool b myapp -o myapp-mod.apk # Sign the new APK (zipalign + apksigner)