I want launch an example,but build failed,how to fix it?

I‘m an android developer,so the sdk and ndk have been installed。The androidwork is not installed(is it needed?)
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Hi coldraincn,

I really need to see the full log to be sure, but from the cut off first line [javac] 3 ??? it looks like you may have API 23 installed and the Java code failed to compile. Try changing your SDK API Level from ‘latest’ to ‘matchndk’ so it uses android-19 instead.