AAPT: error: invalid android:versionCode

这个错误通常是由于版本号不正确造成的。在 AndroidManifest.xml 文件中，android:versionCode 应该是一个整数值，用于标识应用程序的版本号。请确保 android:versionCode 的值是一个数字，并且与你的应用程序版本号相匹配。如果你不确定如何设置 android:versionCode，请参考 Android 官方文档或者搜索相关教程。

相关问题

: AAPT: error: resource android:attr/fontVariationSettings not found.

这个错误通常是由于使用了过时的 AppCompat 版本引起的。你可以尝试更新 AppCompat 版本，或者在你的项目中添加以下代码：

<item name="android:fontVariationSettings">@null</item>

在你的 `styles.xml` 文件的 `AppTheme` 样式中添加上述代码，如下所示：

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- ... -->
    <item name="android:fontVariationSettings">@null</item>
</style>

这应该可以解决你遇到的问题。

AAPT: error: attribute android:android.support.v7.widget not found.

The error message indicates that there is no attribute called "android.support.v7.widget" in your Android project. This attribute was commonly used in older versions of Android and has been replaced with "androidx.appcompat.widget" in newer versions.

To fix the error, you need to replace all occurrences of "android.support.v7.widget" with "androidx.appcompat.widget" in your project's XML files. You can do this manually or by using the "Refactor" option in Android Studio.

Also, make sure that you have added the necessary dependencies for the AppCompat library in your project's build.gradle file. You can add the following lines to the dependencies section of your build.gradle file to use the latest version of AppCompat:

implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'com.google.android.material:material:1.3.0'

After making these changes, clean and rebuild your project to ensure that the changes are applied correctly.