unless专题

The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true

在给ES7手动创建索引的时候，会出现这个异常。代码如下 PUT twitter{"mappings": {"_doc": {"properties": {"type": { "type": "keyword" }, "name": { "type": "text" },"user_name": { "type": "keyword" },"email": { "type": "keywo

Swift: 消除警告－ All interface orientations must be supported unless the app requires full screen

警告：All interface orientations must be supported unless the app requires full screen 解决方法:

pillow jpeg is required unless explicitly disabled using --disable-jpeg

ubuntu 安装 pillow 报错 pip install Pillow ValueError: jpeg is required unless explicitly disabled using --disable-jpeg, aborting 解决（官方文档解决， https://pillow.readthedocs.org/en/3.0.0/installation.h

C语言常见问题(5):enum members other than the first one should not be explicitly initialized unless all mem

就是枚举里面的元素不是连续的，要不就只有一个赋初值的，要么就所以元素都单独赋值。这种问题我们在写代码的时候经常出现，但是确实不是那么规范，引以为戒。

Cannot debug project unless a host application is defined

用C++builder写dll动态库的时候，按F9运行会提示错误信息 Cannot debug project unless a host application is defined. use the Run| Parameters...dialog box.，不能直接按F9运行要按Ctrl+F9才不会报错。