Compiling code. 0.01
Compiling layouts code. 0.00
Generating R file. 0.70
Compiling generated Java code. Error
javac 1.7.0_05
javac: file not found: src\b4a\example\main.java
Usage: javac <options> <source files>
use -help for a list of possible options
This error usually happens when you save your project under a restricted folder (such as Program Files). Windows actually saves the files in a virtual folder which is not accessible to the Java compiler.