我收到此错误：
Cannot complete the install because of a conflicting dependency. Software being installed: Android Development Tools
14.0.0.v201110171935-205994 (com.android.ide.eclipse.adt.feature.group 14.0.0.v201110171935-205994) Software currently installed: Eclipse SDK 4.2.0.I20120608-1400 (org.eclipse.sdk.ide 4.2.0.I20120608-1400) Only one of the following can be installed at once:
International Components for Unicode for Java (ICU4J) 4.4.2.v20110823 (com.ibm.icu 4.4.2.v20110823)
International Components for Unicode for Java (ICU4J) 4.0.1.v20090822 (com.ibm.icu 4.0.1.v20090822)
International Components for Unicode for Java (ICU4J) 4.0.1.v20090415 (com.ibm.icu 4.0.1.v20090415) Cannot satisfy dependency:
From: Android Development Tools 14.0.0.v201110171935-205994 (com.android.ide.eclipse.adt.feature.group
14.0.0.v201110171935-205994)
To: org.eclipse.wst.sse.ui 0.0.0 Cannot satisfy dependency:
From: Eclipse Java Development Tools 3.8.0.v20120525-1249-8-8nFqlFNOfwKDRGz-pXLdGxEM83 (org.eclipse.jdt.feature.group
3.8.0.v20120525-1249-8-8nFqlFNOfwKDRGz-pXLdGxEM83)
To: org.eclipse.jdt.ui [3.8.0.v20120524-1551] Cannot satisfy dependency:
From: Java Development Tools UI 3.8.0.v20120524-1551 (org.eclipse.jdt.ui 3.8.0.v20120524-1551)
To: bundle com.ibm.icu 4.4.2 Cannot satisfy dependency:
From: Java EMF Model Utilities 2.0.200.v200905140200 (org.eclipse.jem.util 2.0.200.v200905140200)
To: bundle com.ibm.icu [3.8.1.1,4.1.0) Cannot satisfy dependency:
From: Java EMF Model Utilities 2.0.201.v201001252130 (org.eclipse.jem.util 2.0.201.v201001252130)
To: bundle com.ibm.icu [3.8.1.1,4.1.0) Cannot satisfy dependency:
From: Eclipse Project SDK 4.2.0.v20120528-1648-7T7oDFDPz-3FepgRqG6kkFFY0UF4_otgmt0XcoU3Zh27X (org.eclipse.sdk.feature.group
4.2.0.v20120528-1648-7T7oDFDPz-3FepgRqG6kkFFY0UF4_otgmt0XcoU3Zh27X)
To: org.eclipse.jdt.feature.group [3.8.0.v20120525-1249-8-8nFqlFNOfwKDRGz-pXLdGxEM83] Cannot satisfy dependency:
From: Eclipse SDK 4.2.0.I20120608-1400 (org.eclipse.sdk.ide 4.2.0.I20120608-1400)
To: org.eclipse.sdk.feature.group [4.2.0.v20120528-1648-7T7oDFDPz-3FepgRqG6kkFFY0UF4_otgmt0XcoU3Zh27X] Cannot satisfy dependency:
From: Common Frameworks 1.1.300.v200904160730 (org.eclipse.wst.common.frameworks 1.1.300.v200904160730)
To: bundle org.eclipse.jem.util [2.0.100,3.0.0) Cannot satisfy dependency:
From: Structured Source Editor 1.1.101.v200908261807 (org.eclipse.wst.sse.ui 1.1.101.v200908261807)
To: bundle org.eclipse.wst.validation [1.2.0,1.3.0) Cannot satisfy dependency:
From: Structured Source Editor 1.1.102.v200910200227 (org.eclipse.wst.sse.ui 1.1.102.v200910200227)
To: bundle org.eclipse.wst.validation [1.2.0,1.3.0) Cannot satisfy dependency:
From: Validation Framework 1.2.102.v200905201610 (org.eclipse.wst.validation 1.2.102.v200905201610)
To: bundle org.eclipse.wst.common.frameworks [1.1.200,2.0.0) Cannot satisfy dependency:
From: Validation Framework 1.2.104.v200911120201 (org.eclipse.wst.validation 1.2.104.v200911120201)
To: bundle org.eclipse.wst.common.frameworks [1.1.200,2.0.0)
我正在使用windows xp professional，jdk 7（http://download.oracle.com），adt（http://dl.google.com/android/ADT-14.0.0.zip）eclipse 4.2 Juno。
如果去帮助 - >安装新软件＆gt;使用：[http://dl-ssl.google.com/android/eclipse] 我明白了：
无法读取存储库 http://dl-ssl.google.com/android/eclipse/content.xml。 org.eclipse.equinox.p2.core.ProvisionException
我错过了什么吗？我怎么能解决这个问题？