Q:

Can't find workflow deployed as WSP solution

I am new to SharePoint, sorry if answer to my question is obvious.
I am trying to deploy my very simple workflow as WSP package, it deploys without errors, I activate it, but I can't find my workflow and associate it with list. Could you help me, please, what I do wrong?
I do it so: 
here is version with screenshots (I can't add screenshots here because of lack of reputation).

Create an empty SharePoint project in VS, choose trust level as a Farm solution
Add simple State Machine Workflow (list workflow, not site), associate it with the Task lisk.
Press CTRL-F5 in VS2010, and see that WF appears, retract it.
Pack it to WSP package, upload and activate it.                        
Check is it associated to list. It doesn't. (As far as I know it is normal)
Try to associate it manually, but I can't see it (List tools/list/workflow settings/add workflow). Why? Where is my error?

I think that I missed something important in basic priciples, but I can't understand what. Help me please.
Thank you in advance.

A:

I've found the answer. The root of the problem is next:
I've tryed to add WSP Farm solution to sandbox solution gallery. I have to use another way for deploying, for example PowerShell.
PS: Thanks to Balamurugan-S KAUST answer 

