跳至主要内容

File ~/.android/repositories.cfg could not be loaded.

Android Studio will run fine without it, but if the warning concerns you, you can create the file ~/.android/repositories.cfg with the following content and the warning will not appear again.
### User Sources for Android SDK Manager
count=0

评论

此博客中的热门博文

go url encoding

func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits. func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits.

mongo db mongodb search index engine

创建全文索引 考虑以下 posts 集合的文档数据,包含了文章内容(post_text)及标签(tags): { "post_text" : "enjoy the mongodb articles on Runoob" , "tags" : [ "mongodb" , "runoob" ] } 我们可以对 post_text 字段建立全文索引,这样我们可以搜索文章内的内容: > db . posts . ensureIndex ({ post_text : "text" }) 使用全文索引 现在我们已经对 post_text 建立了全文索引,我们可以搜索文章中的关键词 runoob: > db . posts . find ({ $text :{ $search : "runoob" }})