final File file = new File(directory, fileName);
        GFileUtils.copyURLToFile(getClass().getResource(fileName), file);
    }

    @OutputDirectory
    public File getSourceDir() {
        return sourceDir;
    }

    public void setSourceDir(File sourceDir) {
        this.sourceDir = sourceDir;
    }

    @OutputDirectory
    public File getHeaderDir() {

Method <org.gradle.nativeplatform.test.cunit.tasks.GenerateCUnitLauncher.getSourceDir()> does not have raw return type assignable to org.gradle.api.provider.Property in (GenerateCUnitLauncher.java:0)