Where is Samsung Certificate Extension

hi dear, i have question about instalation of tizen studio.

so honestly i have to try instal tizen studio and getting success at all in many computer or laptop of my friends to publish game with unity.

but i got a bit problem now, so i have to install Tizen Studio 1.2, and at the part where i must install Samsung Certificate Extension at Extension SDK or Configuration, i still can't see Samsung Certificate Extension. i try to change the package repository url but still at extension sdk i can't see Samsung Certificate Extension.

this is the screenshot :

any idea about that? thankyou so much..

 

@nandonandito
Can you access the link below?
http://developer.samsung.com/sdk-manager/repository/tizen-certificate-extension_2.0.12.zip
If you can download this, please add it manually. you can avoid the issue quickly.

And also uncheck [View installed packages], then share the result please.

And if you provide logs file, it can be helpful to investigate the issue.
C:\Users\{username}\AppData\Local\.package-manager\install-log\package-manager

Thank you.

 

thankyou, i really appreciate.. but its still can't because we cannot connect or use local repository like this picture.

and this is i attached my logs file..

 

@nandonandito
It looks Tizen Studio could not recognize "C#" folder name, so if you move the file on the other place you can install it properly.
Let me know results.
Thank you.