Eclipse3.5，升级Eclipse-bpel时需要的两个包 在添加BPEL Designer插件时，输入http://download.eclipse.org/technology/bpel/update-site/ 后，显示： "Cannot complete the install because one or more required items could not be found. Software being installed: BPEL Visual Designer 0.4.0 (org.eclipse.bpel.feature.feature.group 0.4.