package xulrunner-1.9.2 1.9.2.2+nobinonly-0ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 127

[peanut]

Binary package hint: xulrunner-1.9.2

occurs when i try to update

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: xulrunner-1.9.2 1.9.2.2+nobinonly-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
Architecture: amd64
Date: Fri Apr 9 18:19:07 2010
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
SourcePackage: xulrunner-1.9.2
Title: package xulrunner-1.9.2 1.9.2.2+nobinonly-0ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 127