兩種解決方案：Two actions, first:1.Right click on the project and go to "Properties" 2.Select "Java Build Path" on the left 3.Open "Source" tab 4.Click "Add Folder..." and check "gen" and "src" second: (because the previous action asked me to remove something... I do not remember what it was...)1. Right click on the project and go to "Properties" 2. Select "Java Build Path" on the left 3. Open Libraries "tab" 4. Add an external JAR. Add the Google API that is in your android directory (android-sdk\platforms\android-yourversion 現在基本都解決了.....

　　

轉載于:https://www.cnblogs.com/spring87/p/4443822.html

總結

以上是生活随笔為你收集整理的Eclipse --Type /com.xx.app/gen already exists but is not a source folde解决方案的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。