Problem with Snappy and error

I already configured the py2 during the SNAP installation,

My snappy is available in the following path,

My snappy folder is founded in here, C:\Users\FALAH FAKHRI.snap\snap-python\snappy

I tried to apply this code,

conda create -n snappy python=3.4 but I got the following error, so what do you suggest in this case,

I checked up the list of env,