AS報錯：cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension‘.

從廠商那邊拿到一個序列槽調試的Demo代碼，用Android Studio打開，build報錯：

cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{codename, tag}' is expected.

網上查了好久，終于找到一個可行的方法：

打開一個其他不報錯的項目， File > Project Structure > Project中，檢查：

Android Gradle Plugin Verion和Gradle Version,

然後在報錯的項目中将這兩項更新成相同的版本：

重新build，問題解決。

參考：Invalid content was found starting with element 'base-extension' · Issue #136 · googlesamples/android-testdpc (github.com)