The issue appears to be that the testing repository currently only contains an i386 package for libgsoap4. Fortunately it seems that the amd64 version in the wheezy-backports repository works, so until the testing repo is fixed you can use that:
su - || sudo -i echo deb http://cdn.debian.net/debian/ wheezy-backports main >/etc/apt/sources.list.d/wheezy-backports.list aptitude update -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org