Ubuntu 11.04でPropelを使った時に"Could not perform XLST transformation"が出る時の対処法


$ symfony propel-build-all         
[propel-sql] Processing: generated-schema.xml
[propel-sql] Could not perform XLST transformation.  Make sure PHP has been compiled/configured to support XSLT.


# apt-get install php5-xsl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
The following NEW packages will be installed:
  libxslt1.1 php5-xsl
0 upgraded, 2 newly installed, 0 to remove and 26 not upgraded.
Need to get 178 kB of archives.
After this operation, 602 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ natty/main libxslt1.1 amd64 1.1.26-6build1 [165 kB]
Get:2 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ natty-updates/main php5-xsl amd64 5.3.5-1ubuntu7.3 [13.1 kB]
Fetched 178 kB in 0s (8,156 kB/s)
Selecting previously deselected package libxslt1.1.
(Reading database ... 33399 files and directories currently installed.)
Unpacking libxslt1.1 (from .../libxslt1.1_1.1.26-6build1_amd64.deb) ...
Selecting previously deselected package php5-xsl.
Unpacking php5-xsl (from .../php5-xsl_5.3.5-1ubuntu7.3_amd64.deb) ...
Processing triggers for libapache2-mod-php5 ...
 * Reloading web server config apache2                                   [ OK ]
Setting up libxslt1.1 (1.1.26-6build1) ...
Setting up php5-xsl (5.3.5-1ubuntu7.3) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place