生成签名APK后出现安装解析错误（Package parsing error）求助

Hey there, I totally get how frustrating it is when your debug builds work flawlessly but the signed release APK throws a package parsing error—let’s break down the most likely culprits and fixes:

• Double-check your build variant & release configuration
  It’s easy to accidentally select the wrong variant when generating the signed APK. Make sure you picked the release variant, not debug. Also, peek at your build.gradle (Module level) file: if you’ve enabled minifyEnabled true or shrinkResources true for release builds, missing ProGuard/R8 rules might be stripping critical code that the APK needs to parse properly. Try temporarily disabling these options to see if the APK installs successfully—if it does, you’ll need to add appropriate rules to keep essential classes.

• Verify your icon resources
  You mentioned adding new .png icons, so this is a common suspect. Android requires icons for all density buckets (mipmap-mdpi, hdpi, xhdpi, etc.)—if one of these icons is corrupted, has an incorrect resolution, or is missing entirely, it can cause parsing failures. Open each icon in an image editor to confirm it’s not damaged, and ensure all required density variants are present in the correct folders.

• Validate the APK signature
  A faulty signature is another frequent cause. First, try re-generating the signed APK from scratch—make sure you enter the correct keystore password, alias, and alias password without typos. You can also use Android’s apksigner tool to check if the signature is valid:

  apksigner verify --verbose your-app-release.apk
  

  If the tool flags any issues, re-creating the keystore or re-signing the APK might fix it.

• Rule out APK corruption
  Sometimes the APK gets corrupted during generation or transfer to your phone. Try:

  • Cleaning and rebuilding your project first (Build > Clean Project, then Build > Rebuild Project) before generating the signed APK.
  • Transferring the APK to your phone again (use a different cable or wireless transfer if possible).
  • Installing the release build directly from Android Studio (select the release variant in the dropdown, then click Run) to bypass manual transfer.

• Check device compatibility & settings

  • Ensure your phone’s Android version meets or exceeds the minSdkVersion specified in your build.gradle file.
  • Confirm that your device allows installation of apps from unknown sources (this setting is usually in Settings > Security or Settings > Apps & notifications > Special app access—it might be labeled differently depending on your device).

内容的提问来源于stack exchange，提问作者Ondřej Beneš