npm and error messages

node_modules/pkg-dir/index.js

@@ -0,0 +1,10 @@
+'use strict';
+const path = require('path');
+const findUp = require('find-up');
+
+module.exports = cwd => findUp('package.json', {cwd}).then(fp => fp ? path.dirname(fp) : null);
+
+module.exports.sync = cwd => {
+	const fp = findUp.sync('package.json', {cwd});
+	return fp ? path.dirname(fp) : null;
+};