index.yaml 上传错误解决方法 九月 21st, 2009
在安装程序很可能出现有人无法上传 index.yaml文件的问题，错误如下。
Uploading index definitions.
Error 400: --- begin server output ---
Creating a composite index failed: This index:
entity_type: "Comment"
ancestor: false
Property {
name: "date"
direction: 2
}is not necessary, since single-property indices are built in. Please remove it f
rom your index file and upgrade to the latest version of the SDK, if you haven't
already.
--- end server output ---
Your app was updated, but there was an error updating your indexes. Please retry
later with appcfg.py update_indexes.
产生这个问题的原因是未在本地调试，当你本地调试的时候 程序会自动帮你生成一条规则到index.yaml ，上传程序的时候index 规则也会更新。 你需要做的仅仅是删除index.yaml文件里面的规则，然后调试，再上传index.yaml文件到服务器就可以了。重上传index.yaml命令：
appcfg.py update_indexes yuebinliu/
yuebinliu为我的程序目录，具体上传的时候请修改，有什么问题可以在此留言。