请教tetex-extra 安装不成功

每次安装均出现错误，不知为何？请大虾赐教，debian testing
#apt-get install tetex-extra
...................................
Creating config file /etc/texmf/dvips/config.cmz with new version
Running updmap. This may take some time. ...
Running updmap failed.
dpkg: error processing tetex-extra (--configure):
subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
tetex-extra
E: Sub-process /usr/bin/dpkg returned an error code (1)