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Fixing the "4 issues were found when checking AAR metadata" Error The error   Execution failed for task ':app:checkDebugAarMetadata'   is a common but frustrating build failure in Android Studio. It indicates a problem with the metadata of one or more Android Archive (AAR) libraries your project depends on. This guide will help you diagnose the root cause and provide step-by-step solutions to resolve it. Step 1: Diagnose the Problem The error message is generic. To find the specific culprit, you need more detailed logs. Open the   Terminal   in Android Studio ( View > Tool Windows > Terminal ). Run one of the following commands to get verbose output: bash ./gradlew :app:checkDebugAarMetadata --info or for even more detail: bash ./gradlew :app:checkDebugAarMetadata --debug Scan the output   for lines containing "AAR metadata" or specific library names. The log will explicitly tell you which library is causing the issue and why (e.g.,   minSdkVersion ...

How to Create an Automatic Table of Contents in Microsoft Word Creating a professional Table of Contents (TOC) manually is a tedious and error-prone task. Every time you edit your document, you have to update page numbers and section titles by hand. Fortunately, Microsoft Word can automate this entire process, generating a clean, accurate, and updateable TOC with just a few clicks. This guide will show you how to use Word's built-in Styles to create an automatic Table of Contents that dynamically updates as your document changes. Step 1: Apply Heading Styles to Your Document The magic behind an automatic TOC is Word's   Styles   feature. You must first tell Word which parts of your text are titles and subtitles. Open your document   in Microsoft Word. Select a main section title   (e.g., "Introduction," "API Documentation," "Authentication"). On the   Home   tab in the ribbon, locate the   Styles   gallery. Click   Heading 1 . This style is t...

Fixing "Unable to delete directory" Build Errors in Android Studio If you're encountering the frustrating   "Unable to delete directory '...\app\build'"   error on Windows, you're not alone. This is a common issue where a process, often Android Studio itself or a Gradle daemon, retains a lock on files within the build directory, preventing Gradle from cleaning or rebuilding your project. This guide will walk you through the most effective solutions to resolve this file lock issue and get your builds working again. Understanding the Error The error message typically looks like this: Unable to delete directory 'C:\Users\YourName\YourProject\app\build' Failed to delete some children. This might happen because a process has files open or has its working directory set in the target directory. This is almost always a   Windows file locking issue . The culprit can be: The Gradle Daemon (a background process) Android Studio's internal processes W...