"No supported variables at this location" 
Why 
I can visit the server 192.168.1.100, and found the variable A and System. 
Click A, and "No supported variables at this location." 
The deployment status as follow: 
Initializing... 
Calculating dependencies... 
Checking items for conflicts. This operation could take a while... 
Preparing items for download. This operation could take a while... 
Deploying My Computer 
Deploying A.lvlib 
Deploying A.lvlib:B\\192.168.1.100\A\B deployed. 
Deploying A.lvlib:Data\\192.168.1.100\A\Data deployed. 
Deploying A.lvlib:Open\\192.168.1.100\A\Open deployed. 
Deploying Test.lvproj 
Deployment completed successfully 
Windows 7 
Andriod 2.3.4