Hi,

I have follow some steps to configure umbraco for our website using below reference
http://www.systenics.com/blog/setting-up-umbraco-6-in-visual-studio-2012-for-mvc-development/

1. Downloaded umbraco package 7.0.2

2. Created new MVC 4 Web Application using visual studio

3. Copied all the files from umbraco zip to this new project

4. Excluded "Bin" folder from this and added nuget package umbraco to this project to have all the references of umbraco

5. All configured successfully and I can see umbraco dashboard, create pages all is working fine.

6. But when I try to install any package like say for e.g. 301 URL Tracker, I am getting following error.

Could not upload file
System.NullReferenceException: Object reference not set to an instance of an object. at umbraco.presentation.developer.packages.Installer.HideAllPanes() at umbraco.presentation.developer.packages.Installer.UpdateSettings() at umbraco.presentation.developer.packages.Installer.uploadFile(Object sender, EventArgs e)

Thanks,
Snehal