npm and error messages

node_modules/webpack/lib/EntryModuleNotFoundError.js

@@ -0,0 +1,22 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const WebpackError = require("./WebpackError");
+
+class EntryModuleNotFoundError extends WebpackError {
+	constructor(err) {
+		super();
+
+		this.name = "EntryModuleNotFoundError";
+		this.message = "Entry module not found: " + err;
+		this.details = err.details;
+		this.error = err;
+
+		Error.captureStackTrace(this, this.constructor);
+	}
+}
+
+module.exports = EntryModuleNotFoundError;