Unity集成Firebase遇DllNotFoundException(App-4.5.2)问题求助

Hey, I’ve dealt with this exact Firebase DLL missing error in Unity before, so I know how frustrating it can be! You said you already tried the common fix of using Play Service Resolver -> Android -> Settings -> Force Resolve but it didn’t resolve the issue—let’s dive into some more targeted troubleshooting steps:

• Verify Firebase SDK & Unity Version Compatibility
  The App-4.5.2 version you’re using has specific Unity version requirements. Double-check that your current Unity editor version meets the minimum requirement for this Firebase SDK release. If not, either upgrade Unity to a compatible version or downgrade your Firebase SDK to one that works with your existing setup.

• Manually Check for Missing Native Library Files
  This error means Unity can’t locate the required native library for Firebase App. Head to your project’s Assets/Plugins/Android folder and look for the firebase-app-4.5.2.aar file (for Android) or check Assets/Plugins/iOS for the corresponding .framework file (for iOS). If these files are missing, re-download the exact 4.5.2 Firebase SDK package and manually copy the missing native libraries into the correct Plugins directories.

• Clear Unity’s Cache & Re-Import Firebase
  Unity’s cache can sometimes cause file loading glitches. Try these steps:

  1. Close Unity completely
  2. Delete the Library folder in your project’s root directory (Unity will rebuild it when you reopen the project)
  3. Reopen your Unity project
  4. Run Play Service Resolver -> Android -> Force Resolve again and wait for all dependencies to re-download and import fully

• Double-Check Player Settings Configurations
  For Android:

  • Ensure your Minimum API Level in Player Settings matches the minimum required by Firebase 4.5.2 (usually API Level 16 or higher)
  • Confirm your project’s Package Name exactly matches the one registered in your Firebase Console (even small case mismatches can break functionality)

• Reset Firebase Resolver Cache
  Navigate to Assets/Firebase/Editor and delete any cache files related to firebase-unity-resolver. Then run Force Resolve once more—this will make the resolver pull fresh copies of all required dependencies instead of relying on cached (possibly corrupted) files.

If none of these steps work, try setting up a brand new empty Unity project, import only Firebase Core and Analytics modules, and test if it runs without errors. This will help you rule out conflicts with other assets or configurations in your existing project.

内容的提问来源于stack exchange，提问作者ManLok Wong