Remember to check your framework version

I’ve just recently installed the final version of Microsoft Visual Web Developer 2010 Express – which is my tool of choice for building for Windows Azure.

When you open a project from an older version, you get the option to upgrade the projects. My default response to this dialog box is to click on Finish and not walk through the wizard. Now one thing that I notice is that if there are any web projects, you will be asked if you want to leave them as framework 3.5 projects, or upgrade them. Right now Windows Azure does not support .net 4 applications – so you should choose to leave them at framework 3.5.

This is great, but if you have any class libraries or other projects, those seem to get upgraded automatically to framework 4.0. The easy fix is to check the project properties of each project and make sure the framework version is set to 3.5. Fortunately most of the projects I’ve converted have thrown up warnings – but it’s always good to check.

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