private static void RewriteWebConfig(AutoRemovableDirectory tempFiles, ConfigReplacements replacements) { var webConfig = tempFiles.ReadFile("Web.config"); var configRewriter = new ConfigRewriter(new ConfigSources(new Dictionary <string, string>())); var rewrittenWebConfig = configRewriter.Rewrite(webConfig, replacements); tempFiles.WriteFile("Web.config", rewrittenWebConfig); }