Can'tt install package Springnodes in Dynamo?

Please help!
I can not install package Springnodes in Dynamo. Anyone knows the reason why??

Do you want to update the package or install it for the first time ?

You can also download the package from and drop the content of the zip into C:\Users\YOUR NAMEi\AppData\Roaming\Dynamo\Dynamo Revit\1.3\packages\spring nodes

Hi. Thanks for your quick reply. I want to install it for the first time.