Overview of 'Execution failed for task ':app:lintVitalRelease''
- This error typically occurs during the release build process in Flutter applications, when Gradle attempts to run lint checks specifically targeting vital issues.
- Lint checks are static code analyses that identify programming errors, bugs, stylistic errors, and suspicious constructs in your code.
Common Causes of the Error
- Missing Required Files or Configurations: The lint task may fail if it can't find necessary configuration files or settings that are required to perform the analysis correctly. This could include missing or improperly configured manifest files, project properties, or application resources.
- Incompatible Plugin or Library Versions: A mismatch or incompatibility between different plugins or libraries can cause failures during lint analysis. If any library or plugin is incompatible with others or with the Flutter version you are using, it can lead to such a failure.
- Code Quality Issues: Severe code issues that breach vital lint rules can trigger this error. This includes critical problems with unused resources, problematic API usage, accessibility issues, or dark mode configurations that are not handled.
- Outdated or Corrupted Build Cache: Outdated or corrupted Gradle and lint caches can result in failed execution. When caches do not properly update to reflect the latest codebase or build process, it disrupts the linting process.
- Memory Limitations: The Gradle daemon running out of allocated memory when performing lint tasks can also cause this failure. Larger codebases require more memory to analyze, and insufficient memory allocation can terminate the process improperly.
- Custom Lint Rules: When custom lint rules are misconfigured or contain errors, the lint process may fail as it attempts to execute these rules. Custom rules might not be updated for newer versions of the development environment or dependencies, causing incompatibility issues.
Example of Code Triggering Issues
- Consider a case where the AndroidManifest.xml file lacks required permissions that the lint tool checks for. Below is an example of problematic code:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.app">
<!-- Missing Internet Permission might cause a lint error -->
<!-- <uses-permission android:name="android.permission.INTERNET"/> -->
<application
android:allowBackup="true"
android:label="@string/app_name"
android:icon="@mipmap/ic_launcher">
</application>
</manifest>
- If custom lint rules are improperly defined, like expecting a specific string format that is not correctly checked, it can cause the task to fail:
public class CustomLintRule extends Detector implements Detector.UastScanner {
// Code might be incomplete or incorrectly checking for patterns,
// causing unexpected results or crashes in linting.
}
