npm and error messages

node_modules/webpack/lib/node/NodeOutputFileSystem.js

@@ -0,0 +1,22 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const mkdirp = require("mkdirp");
+
+class NodeOutputFileSystem {
+	constructor() {
+		this.mkdirp = mkdirp;
+		this.mkdir = fs.mkdir.bind(fs);
+		this.rmdir = fs.rmdir.bind(fs);
+		this.unlink = fs.unlink.bind(fs);
+		this.writeFile = fs.writeFile.bind(fs);
+		this.join = path.join.bind(path);
+	}
+}
+
+module.exports = NodeOutputFileSystem;