closing julianlam/nodebb-plugin-sso-oauth#8 -- if a templates directory is defined without that directory being present, NodeBB will no longer crash

src/plugins.js

@@ -591,9 +591,13 @@ var fs = require('fs'),
 				if (plugin.templates && plugin.id && plugin.active) {
 					var templatesPath = path.join(__dirname, '../node_modules', plugin.id, plugin.templates);
 					utils.walk(templatesPath, function(err, pluginTemplates) {
+						if (pluginTemplates) {
 							pluginTemplates.forEach(function(pluginTemplate) {
 								templates["/" + pluginTemplate.replace(templatesPath, '').substring(1)] = pluginTemplate;
 							});
+						} else {
+							winston.warn('[plugins/' + plugin.id + '] A templates directory was defined for this plugin, but was not found.');
+						}
 
 						next(err);
 					});