Radrails import

Hi Railers,

I'm trying to import my project into Radrails but i'm getting errors
like

"Problems were encountered during import: Could not read from source
when writing file 'C:\railsproject\myproject\.metadata\.lock'
The process cannot access the file because another process has locked a
portion of the file

C:\railsproject\myproject\public\images\folder1\index\Thumbs.db (Access
is denied)

Kindly tell me where could the problem be.

The .lock file does not exist in my dirctory at all.

Thanks in advance,
Premanshu