This question also seems to arise in relation to VW Architect - when I initially tried to install the libraries the install would seemingly proceed until it got to 'merge' libraries whereupon it seemed to halt. Having first thought that there was a problem with the install and having cancelled it twice I eventually decided to leave it and after about 15 minutes it did finally complete. I don't know how much information is in these library files but it would be useful to offer more of a choice of which libraries to select during this merger operation.