private static void CheckMainTemplateGradle()
    {
        if (File.Exists(currentMainTemplate))
        {
            if (!Startup.AppcoinsMainTemplateAlreadyMerged())
            {
                File.Copy(currentMainTemplate, oldMainTemplate, true);

                Tree <string> tCurrent = Tree <string> .CreateTreeFromFile(currentMainTemplate, FileParser.BUILD_GRADLE);

                Tree <string> tAppcoins = Tree <string> .CreateTreeFromFile(appcoinsMainTemplate, FileParser.BUILD_GRADLE);

                tCurrent.MergeTrees(tAppcoins);
                Tree <string> .CreateFileFromTree(tCurrent, UnityEngine.Application.dataPath + "/Plugins/Android/mainTemplate.gradle", false, FileParser.BUILD_GRADLE);
            }
        }

        else
        {
            File.Copy(appcoinsMainTemplate, currentMainTemplate, true);
        }
    }