diff --git a/configs/client-default.js b/configs/client-default.js
index 4f555a68..bc549a1a 100644
--- a/configs/client-default.js
+++ b/configs/client-default.js
@@ -314,7 +314,10 @@ module.exports = function(options) {
             packagePath: "plugins/c9.ide.language.trace/trace",
             extendToken: extendToken,
         },
-        "plugins/c9.ide.language.trace/ui",
+        {
+            packagePath: "plugins/c9.ide.language.trace/ui",
+            workspaceDir: workspaceDir,
+        },
 
         // Run
         {
diff --git a/node_modules/vfs-local/localfs.js b/node_modules/vfs-local/localfs.js
index 6168cdd1..2ecf079e 100644
--- a/node_modules/vfs-local/localfs.js
+++ b/node_modules/vfs-local/localfs.js
@@ -211,7 +211,7 @@ module.exports = function setup(fsOptions) {
                     var args = Array.prototype.slice.apply(arguments);
                     var d = domain.create();
                     d.on("error", function(e) {
-                        console.error("VFS Exception in function '" + func + "':\n" + e.stack);
+                        console.error("VFS Exception in function '" + func + "':\n", (e.stack || e));
                         vfs.emit("error", {
                             message: e.message,
                             func: func,
@@ -220,7 +220,7 @@ module.exports = function setup(fsOptions) {
                         });
                         console.log("Scheduling process exit");
                         setTimeout(function() {
-                            console.log("Exiting after uncaught exception in '" + func + "':\n" + e.stack)
+                            console.log("Exiting after uncaught exception in '" + func + "':\n", (e.stack || e))
                             process.exit(1);
                         }, 2000);
                     });
diff --git a/plugins/c9.fs/mock/test.js b/plugins/c9.fs/mock/test.js
index 94948eaf..b07b88ff 100644
--- a/plugins/c9.fs/mock/test.js
+++ b/plugins/c9.fs/mock/test.js
@@ -28,4 +28,4 @@ var i = 0;
 console.log(greeter(user), Date.now(), i++);
 setInterval(function(){
     console.log(greeter(user), Date.now(), i++);
-}, 1000);
\ No newline at end of file
+}, 10000);