String banner = parsedArgs.getString("banner");
String[] bannerExtensions = parsedArgs.getString("bannerExtensions").split(",");
String targetPath = parsedArgs.getString("target");
App app = brjs.app(appName);
if(!app.dirExists()) throw new CommandArgumentsException("Could not find application '" + appName + "'", this);
File targetDir;
if (targetPath.equals("")) {
targetDir = brjs.storageDir("exported-apps");
} else {