here is the log file of app manager:
hildon-application-manager 2.2.51-1
-----
Uninstalling rootsh 1.5
(Reading database ... 24072 files and directories currently installed.)
Removing rootsh ...
/var/lib/dpkg/info/rootsh.prerm: line 5: syntax error: "fi" unexpected (expecting "then")
dpkg: error processing rootsh (--remove):
subprocess pre-removal script returned error exit status 2
Errors were encountered while processing:
rootsh
E: Sub-process /usr/bin/dpkg returned an error code (1)