Error:Execution failed for task ':app:processDebugResources'.个人已解决

个人问题出现场景：在编写ListView列表时，主类中初始化数据时，R报错，找不到该资源文件
个人问题出现原因：是res资源下drawable文件夹中放置的图片有问题。（Goole了一下，发现每个人问题可能不一样）
drawable官方文档说明：

Drawable Resources

SEE ALSO

2D Graphics
A drawable resource is a general concept for a graphic that can be drawn to the screen and which you can retrieve with APIs such as 

getDrawable(int)

 or apply to another XML resource with attributes such as 

android:drawable

 and 

android:icon

. There are several different types of drawables:Bitmap: the simplest Drawable, a PNG or JP
4000
EG image.
Nine Patch: an extension to the PNG format allows it to specify information about how to stretch it and place things inside of it.
Shape: contains simple drawing commands instead of a raw bitmap, allowing it to resize better in some cases.
Layers: a compound drawable, which draws multiple underlying drawables on top of each other.
States: a compound drawable that selects one of a set of drawables based on its state.
Levels: a compound drawable that selects one of a set of drawables based on its level.
Scale: a compound drawable with a single child drawable, whose overall size is modified based on the current level.

①个人当时编写代码时比较匆忙，没有提前准备好相应的图片，就找了电脑里几张喜欢的图片，复制粘贴在drawable下，在代码中R资源文件爆红，显示找不到，在引入资源时R文件发生报错，报错查看locat之后发现原因：drawable图片尺寸过大；


②紧接着，删除了过大的图片，又试着找了几张图标图，结果依然R文件报错，locat中显示Error:Execution failed for task ':app:processDebugResources'。带着问题查找了官方文档，最终发现是drawable文件夹下面的图片资源文件错误。删除之后，程序正常运行，列表也显示成功。
Error:Execution failed for task ':app:processDebugResources'——每个人出现问题的原因可能不同，针对locat给出的提示，在结合官方API文档，去查找对应的解决办法。