编译渲染脚本时发生Gradle错误

Question

I want to make demo app with help of render script in android studio for photo processing. But when i had build project it give me error of app:compileDebugRenderscript My project specification are as follows.

compileSdkVersion 19
buildToolsVersion '19.1.0'

minSdkVersion 16
targetSdkVersion 19
renderscriptTargetApi 18
renderscriptSupportModeEnabled true

Here is the snippet of my renderscript

uchar4_attribute_((kernel)) bar(uint32_t x,uint32_t y) {
    uchar4 ret  -((uchar)x,(uchar)y,(uchar)(x+y)(uchar)255)
    return ret;
}

Answer 1

Can you show any part of foo.rs? There is an error message above that mentions missing a declaration specifier. Did you skip a return value in the code? Can you try with just a mostly empty source file to get the build right first?