error CS0016 - Access to the path is denied

I am getting only this error. I have no idea what is causing it. Please help as I am so excited to get leap working with unity.

Internal compiler error. See the console log for more information. output was:error CS0016: Could not write to file `Temp/Assembly-CSharp-firstpass.dll', cause: Access to the path "C:\Users\******\Documents\Leap Test\Temp\Assembly-CSharp-firstpass.dll.mdb" is denied.

I have tried to reimport assets and turn of antivirus to no avail. I have also made sure I have the correct permission for the file/folder.

Same problem here too. Its getting very annoying. Only started since upgrading to win 8.1