Solving Flutter Build Issues with build.gradle

Recently, I encountered a frustrating issue with Flutter's latest version: my app wouldn't build after adding new code. I could only resolve it by modifying my android/build.gradle file.

The Fix:

Adding this block to build.gradle resolved the problem:

subprojects {  
    afterEvaluate { project ->  
        if (project.plugins.hasPlugin("com.android.application") ||  
            project.plugins.hasPlugin("com.android.library")) {  
            project.android {  
                compileSdkVersion 34  
                buildToolsVersion "34.0.0"  
            }  
        }  
    }  
}          

Why This Happens:

• Compile SDK Mismatch: Flutter's latest versions require a higher compileSdkVersion and buildToolsVersion. Without this, Gradle may fail to build or bundle the app.
• Dependency Conflicts: Older dependencies in submodules might default to incompatible SDK versions. This code forces all modules to use consistent versions.
• Gradle Defaults: The updated Gradle toolchain expects explicit SDK configurations.

Tips:

• Always match compileSdkVersion with Flutter’s recommendations.
• Use flutter clean before rebuilding to avoid cached issues.

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#project #Flutter #Gradle #MobileDevelopment #AppDevelopment