我的eclipse是helios版本，安装Visual Editor 1.5.0 一直失败
显示：
The operation cannot be completed. See the details.
details:
Cannot complete the install because of a conflicting dependency.
Software being installed: Visual Editor 1.5.0.R20101202-1328 (org.eclipse.ve.feature.group 1.5.0.R20101202-1328)
Software currently installed: Eclipse IDE for Java Developers 1.3.2.20110218-0812 (epp.package.java 1.3.2.20110218-0812)
Only one of the following can be installed at once:
Debug Core 3.5.1.v20091103_r352 (org.eclipse.debug.core 3.5.1.v20091103_r352)
Debug Core 3.5.0.v20090526-1600 (org.eclipse.debug.core 3.5.0.v20090526-1600)
Debug Core 3.6.0.v20100519 (org.eclipse.debug.core 3.6.0.v20100519)
Only one of the following can be installed at once:
Equinox Provisioning Director 1.0.101.R35x_v20100112 (org.eclipse.equinox.p2.director 1.0.101.R35x_v20100112)
Equinox Provisioning Director 1.0.100.v20090520-1905 (org.eclipse.equinox.p2.director 1.0.100.v20090520-1905)
Equinox Provisioning Director 2.0.3.R36x_v20101117-1018 (org.eclipse.equinox.p2.director 2.0.3.R36x_v20101117-1018)
Cannot satisfy dependency:
From: Eclipse IDE for Java Developers 1.3.2.20110218-0812 (epp.package.java 1.3.2.20110218-0812)
To: org.eclipse.platform.ide 0.0.0
Cannot satisfy dependency:
From: Equinox p2 Provisioning 2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628 (org.eclipse.equinox.p2.user.ui.feature.group 2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628)
To: org.eclipse.equinox.p2.director [2.0.3.R36x_v20101117-1018]
Cannot satisfy dependency:
From: PDE Core 3.5.0.v20090602 (org.eclipse.pde.core 3.5.0.v20090602)
To: bundle org.eclipse.equinox.p2.director [1.0.100,2.0.0)
Cannot satisfy dependency:
From: PDE Core 3.5.100.v20090821 (org.eclipse.pde.core 3.5.100.v20090821)
To: bundle org.eclipse.equinox.p2.director [1.0.100,2.0.0)
Cannot satisfy dependency:
From: PDE Core 3.5.101.v20100104 (org.eclipse.pde.core 3.5.101.v20100104)
To: bundle org.eclipse.equinox.p2.director [1.0.100,2.0.0)
Cannot satisfy dependency:
From: Eclipse Platform 3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSMvJR2sJ (org.eclipse.platform.feature.group 3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSMvJR2sJ)
To: org.eclipse.debug.core [3.5.0.v20090526-1600]
Cannot satisfy dependency:
From: Eclipse Platform 3.5.1.R35x_v20090910-9gEeG1_FthkNDSP2odXdThaOu9GFDPn83DGB7 (org.eclipse.platform.feature.group 3.5.1.R35x_v20090910-9gEeG1_FthkNDSP2odXdThaOu9GFDPn83DGB7)
To: org.eclipse.debug.core [3.5.0.v20090526-1600]
Cannot satisfy dependency:
From: Eclipse Platform 3.5.2.R35x_v20100210-0800-9hEiFzmFst-TiEn9hNYgDWg1XN8ulH_JvCNGB (org.eclipse.platform.feature.group 3.5.2.R35x_v20100210-0800-9hEiFzmFst-TiEn9hNYgDWg1XN8ulH_JvCNGB)
To: org.eclipse.debug.core [3.5.1.v20091103_r352]
Cannot satisfy dependency:
From: Eclipse Platform 3.5.0.I20090611-1540 (org.eclipse.platform.ide 3.5.0.I20090611-1540)
To: org.eclipse.platform.feature.group [3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSMvJR2sJ]
Cannot satisfy dependency:
From: Eclipse Platform 3.5.1.M20090917-0800 (org.eclipse.platform.ide 3.5.1.M20090917-0800)
To: org.eclipse.platform.feature.group [3.5.1.R35x_v20090910-9gEeG1_FthkNDSP2odXdThaOu9GFDPn83DGB7]
Cannot satisfy dependency:
From: Eclipse Platform 3.5.2.M20100211-1343 (org.eclipse.platform.ide 3.5.2.M20100211-1343)
To: org.eclipse.platform.feature.group [3.5.2.R35x_v20100210-0800-9hEiFzmFst-TiEn9hNYgDWg1XN8ulH_JvCNGB]
Cannot satisfy dependency:
From: Eclipse Platform 3.6.2.M20110210-1200 (org.eclipse.platform.ide 3.6.2.M20110210-1200)
To: org.eclipse.equinox.p2.user.ui.feature.group [2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628]
Cannot satisfy dependency:
From: Visual Editor 1.5.0.R20101202-1328 (org.eclipse.ve.feature.group 1.5.0.R20101202-1328)