Android Hello world未生成类

Question

i have the problem, when i created a Android application it not generated class and layoout file. i have read the explanation Hello Wordl

but i got the message: Cannot complete the request. See the error log for details. "Android DDMS" will be ignored because it is already installed. "Android Development Tools" will be ignored because it is already installed. "Android Hierarchy Viewer" will be ignored because it is already installed. "Android Native Development Tools" will be ignored because it is already installed. "Android Traceview" will be ignored because it is already installed. "Tracer for OpenGL ES" will be ignored because it is already installed.

i look at uninstall plugin but the button uninstall is disable.

any idea ?

Answer 1

根据您链接的教程进行回答：创建空活动而不是空活动会同时生成应用程序类和布局文件。