Diamond types are not supported at language level '5' 泛型(菱形)類型是不支持5語言級別的
當從其他地方拷貝類文件到idea中很容易出現這種情況 在這裏需要設置兩個點： 此處需要設置爲高版本的，但是有些時候這裏設置完之後還是報錯，並沒有改變什麼，這時就要設置另一個地方： 此時就應該可以解決問題了！！！ 如果有幫助，贊一哈，感謝！！！
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相關文章
- 1. Diamond types are not supported at language level '5'
- 2. Maven工程 報 Diamond types are not supported at language level '5'
- 3. lambda expressions are not supported at language level '5'
- 4. Lambda expression are not supported at language level '5'
- 5. IDEA lambda expressions are not supported at language level '5'
- 6. idea jdk明明是1.8了，還是 出現Diamond types are not supported at this language level
- 7. diamond types are not supported -sourceX.X
- 8. （轉）IDEA 報錯：not supported at language level "5"
- 9. IDEA中Diamond types are not supported at this language level,internal java compiler error解決
- 10. Idea中JDK爲1.8，還提示Diamond types are not supported at this language level