robotframework出现错误：Keyword 'AppiumLibrary.Open Application' expected 1 to 2 non-keyword arguments,got 5.

robotframework官网：

http://robotframework.org/#introduction

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出现的场景：

由于一开始不了解robotframework，从github上下载https://github.com/hong10/sample-code，运行里面的robotframework示例代码，出现以下错误：

Keyword 'AppiumLibrary.Open Application' expected 1 to 2 non-keyword arguments,got 5.

解决版本：（https://github.com/jollychang/robotframework-appiumlibrary/issues/28）

since 1.2.0 we update Open Application keyword, you can check it that

http://jollychang.github.io/robotframework-appiumlibrary/doc/AppimuLibrary.html#Open%20Application
such as

Open Application http://localhost:4723/wd/hub platformName=Android platformVersion=4.2.2 deviceName=192.168.56.101:5555 app=${CURDIR}/demoapp/OrangeDemoApp.apk appPackage=com.netease.qa.orangedemo appActivity=MainActivity

原因：由于示例代码中的Open Application没有以key,value的形式书写，导致出现这个问题；