Install Project Template in Visual Studio 2012 for Sharepoint 2013 Apps / Add-Ons

Download following components to get start with Sharepoint apps development.

Microsoft Exchange Web Services:

http://download.microsoft.com/download/8/2/5/825231AC-D373-45D4-A644-7AF12340C815/EwsManagedApi32.msi

Click on the following link to download VS2012 project template to get start with the development of Sharepoint 2013 / O365 version.

http://download.microsoft.com/download/2/F/6/2F6A4FFA-D409-40C8-AF68-F6F0CBE0A00D/ENU/officetools_bundle.exe

Microsoft Identity Extensions

http://download.microsoft.com/download/0/1/D/01D06854-CA0C-46F1-ADBA-EBF86010DCC6/RTM/MicrosoftIdentityExtensions-64.msi

Workflow Manager Client 1.0

http://download.microsoft.com/download/D/B/D/DBD439A9-370D-40EA-B3B7-45CD935B98FB/WF/en/WorkflowManagerClient_x64.msi

Microsoft Workflow Manger Tools

http://download.microsoft.com/download/D/B/D/DBD439A9-370D-40EA-B3B7-45CD935B98FB/WFTools/en/WorkflowManagerTools_x64.msi

Working around with the error: An error occurred whilst trying to load some required components, Please ensure the following prerequisite components are installed.

Microsoft Web Developer Tools

Microsoft Exchange Web Services”

To get this error solved, Uninstall Microsoft Exchange Web Services from Control Panel, if its already installed. And navigate to the location of EwsManagedApi32.msi. In my case, its at: c:\Users\Zia\Download> In the command prompt, run

c:\Download> EwsManagedApi32.msi addlocal=”ExchangeWebServicesApi_Feature,ExchangeWebServicesApi_Gac”

It will initiate the installation wizard and I hope this will solve your problem.