vsts - Git project failing to build on Team Foundation Service -

i'm running vs2012.2 , trying build simple hello world app on team foundation service using git team project, build fails solution file not found error - can't seem find place looking solution file referenced

i have cloned to

c:\sources\acme** , solution file located here...  c:\sources\acme\development\trunk\source\acmeproduct\acmeproduct.sln 

in build definition see field: 2.1 solution build. in enter

development\trunk\source\acmeproduct\acmeproduct.sln 

in build log

the project file 'c:\a\src\development\trunk\source\acmeproduct\acmeproduct.sln'  not found. (type filenotfoundexception)  

i'm curious c:\a came from, folder doesn't exist on pc. build definition using default gittemplate.xaml

thanks in advance!