The installation fails because one dependency was not found in your
Eclipse installation.
I don't know if the console 3.5.0 is available for Galileo.
Could you take a look at the plugins directory of your Eclipse?
Search for a plugin called "org.eclipse.ui.console".
Which version is it?
You could try to add the following update site [0] to your Eclipse
installation.
Then, try to install the BPEL Designer once again. Eclipse should
contact the new update site to try to find the missing dependency.
Problem installing BPEL Designer in
eclipse 3.5.2 galileo
Cannot
complete the install because one or more required items
could not be found.
Software being installed: BPEL Visual
Designer 0.5.0.v20101202-1444-H38-CI
(org.eclipse.bpel.feature.feature.group
0.5.0.v20101202-1444-H38-CI)
Missing requirement: BPEL Editor
(Incubation)
0.5.0.v20101202-1444-H38-CI (org.eclipse.bpel.ui
0.5.0.v20101202-1444-H38-CI)
requires 'bundle org.eclipse.ui.console 3.5.0' but it
could not be found