LevelSelectionScreen.java

 FileHandle[] handle = Gdx.files.internal("maps").list();
        int mapCount = 0;
        for (FileHandle file : handle) {
            Gdx.app.log(LOG, file.name() + "|" + file.extension());
            if(file.extension().equals("tmx")) {
                // Doesnt work
                file.copyTo(Gdx.files.local("test"));
                mapCount++;

            }
            // Doesnt work
            FileHandle file1 = Gdx.files.local("local.txt");
            file1.writeString("test", false);
        }
        Gdx.app.log(LOG, "Copied " + mapCount + " maps to local directory");

        // Works
        FileHandle file2 = Gdx.files.local("local2.txt");
        file2.writeString("test2", false);