ec新建安卓项目提示这个错误，怎么解决，新手求详细点(●'◡'●)

Question

[2018-02-25 19:22:53 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:53 - HelloWorld]
[2018-02-25 19:22:53 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v11\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:53 - HelloWorld]
[2018-02-25 19:22:53 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v14\styles.xml:8: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.
[2018-02-25 19:22:53 - HelloWorld]
[2018-02-25 19:22:54 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:54 - HelloWorld]
[2018-02-25 19:22:54 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v11\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:54 - HelloWorld]
[2018-02-25 19:22:54 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v14\styles.xml:8: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.
[2018-02-25 19:22:54 - HelloWorld]
[2018-02-25 19:22:55 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:55 - HelloWorld]
[2018-02-25 19:22:55 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v11\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
[2018-02-25 19:22:55 - HelloWorld]
[2018-02-25 19:22:55 - HelloWorld] C:\Users\78570\Desktop\ec_workspace\HelloWorld\res\values-v14\styles.xml:8: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.
[2018-02-25 19:22:55 - HelloWorld]

Answer 1

下载appcompat就好了