"Can't cd to /var/cache/flashplugin-installer" error when I try to install Flash

Question

$ sudo aptitude install flashplugin-installer

   The following partially installed packages will be configured:
   flashplugin-installer 
    No packages will be installed, upgraded, or removed.

0 packages upgraded, 0 newly installed, 0 to remove and 15 not upgraded.

Need to get 0B of archives. After unpacking 0B will be used.

Setting up flashplugin-installer (11.1.102.55ubuntu0.10.10.1) ...

cd: 161: can't cd to /var/cache/flashplugin-installer

dpkg: error processing flashplugin-installer (--configure):

 subprocess installed post-installation script returned error exit status 2

Errors were encountered while processing:

 flashplugin-installer

E: Sub-process /usr/bin/dpkg returned an error code (1)

A package failed to install.  Trying to recover:

Answer 1

There is a bug, that sometimes prevents installing the flash plugin. Actually there are several reports, I just picked one with a possible workaround:

1. Check if the directory exists: ls /var/cache/flashplugin-installer
2. If not, create as root: sudo mkdir /var/cache/flashplugin-installer
3. Re-run the install command.

Answer 2

This is probably a bug but, anyhow, i found more easy installing flash in another way ( but with this method only a local installation is made ) :

• download the tar.gz package from the official website
• unpack
• copy only the file named libflashplayer.so to ~/.mozilla/plugins ( if the plugins folder does not exist create it )
• start firefox with your brand new plugin installed, if you want to upgrade flash you only have to copy the new .so file over the old one.