更新失败啊，重试也不行

An error occurred while collecting items to be installed
session context was:(profile=profile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,com.aptana.editor.coffee,3.0.0.201506252132.
MD5值不正确。预计MD5值：da5cbb2ed0d179a49b6dcef7c67bc88a 实际MD5值 6533fe57859512cc2939cf7e00a68e40，请重新检查更新。
Artifact not found: osgi.bundle,com.aptana.editor.common,3.0.3.201506261606.
http://update.dcloud.net.cn/test/update/plugins/com.aptana.editor.common_3.0.3.201506261606.jar
Problems downloading artifact: osgi.bundle,com.aptana.editor.html,3.0.3.201506252136.
MD5值不正确。预计MD5值：7bfac061829ef3657d6fd07c8caefba9 实际MD5值 e7fc8d6857f97d5723c3aead54a271ac，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.editor.js,3.0.3.201506241757.
MD5值不正确。预计MD5值：cedbb0c8fb2d3dd8f7d53d88450e8c66 实际MD5值 481b563b5e1ac8cea3aee8118fd07bde，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.editor.ruby,3.0.3.201506181637.
MD5值不正确。预计MD5值：64c1bfa56d93534c8864fa00cb32b1af 实际MD5值 ec1a4cc1030656ebc8821ad9dbf1d3a2，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.editor.sass,3.0.2.201506181631.
MD5值不正确。预计MD5值：b5ed6bd0221f08286c96974fd10a4718 实际MD5值 01f92b33d1591c6495c3b3e05134ac98，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.rcp,1.0.0.201506252144.
MD5值不正确。预计MD5值：e7093240a9923d995702f5a303bcb3f5 实际MD5值 0dac26ddc5ea26ca6a792fdb87d0dacd，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.ui.epl,3.0.0.201506240052.
MD5值不正确。预计MD5值：97f5978d4ebd85f10c25e316ceb98db1 实际MD5值 559bb2d9bc11bfe3a3fa5c31d38a2f86，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.aptana.ui.io,3.0.0.201506191759.
MD5值不正确。预计MD5值：b5a86a7964e6728c2e1269baea1286c0 实际MD5值 8a47422da6c78a705e82736557b037d6，请重新检查更新。
Artifact not found: osgi.bundle,com.pandora.core,1.0.0.201506281709.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.core_1.0.0.201506281709.jar
Problems downloading artifact: osgi.bundle,com.pandora.core.utils,1.0.0.201506262126.
MD5值不正确。预计MD5值：368a6e5af706ae6e0605f526d24c4488 实际MD5值 35014eb8da02cdb6f3f465b0817d537b，请重新检查更新。
Artifact not found: osgi.bundle,com.pandora.editor.ui,1.0.0.201506282127.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.editor.ui_1.0.0.201506282127.jar
Problems downloading artifact: osgi.bundle,com.pandora.launcher.core,1.0.0.201506241459.
MD5值不正确。预计MD5值：d3bfa313ea51d89c49129e976f6c4e26 实际MD5值 7470445a92f1f51e7ea46e740301f03e，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.pandora.mem,1.0.0.201506242205.
MD5值不正确。预计MD5值：0890f80b0b74d90cd2638b6756e8e158 实际MD5值 0a3a84b4f83c0425dc8708bdbe4771f8，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.pandora.pack.core,1.0.0.201506262126.
MD5值不正确。预计MD5值：6315ec35a4fee8d3e9354f36bf8842d6 实际MD5值 02f6874a080bcc02e309c1c28715b29e，请重新检查更新。
Problems downloading artifact: osgi.bundle,com.pandora.pack.ui,0.5.0.201506251543.
MD5值不正确。预计MD5值：d7eb24e8a8c5ca6411a2e5ea2ad9dd1e 实际MD5值 7e12005c136c9ed277a5271a507b84a1，请重新检查更新。
Artifact not found: osgi.bundle,com.pandora.templates.ui,1.0.0.201506290044.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.templates.ui_1.0.0.201506290044.jar
Artifact not found: osgi.bundle,com.pandora.tools.android,1.0.0.201506270128.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.tools.android_1.0.0.201506270128.jar
Artifact not found: osgi.bundle,com.pandora.ui,1.0.0.201506290019.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.ui_1.0.0.201506290019.jar
Artifact not found: osgi.bundle,com.pandora.version,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/plugins/com.pandora.version_6.0.0.201506290132.jar
Problems downloading artifact: osgi.bundle,org.eclipse.equinox.util.overide,1.0.0.201506270126.
MD5值不正确。预计MD5值：4ea034b1dc788c2cc5cf2669020e3a20 实际MD5值 9a099aa58ffd0a041ac1d2f1905fd5ba，请重新检查更新。
Artifact not found: org.eclipse.update.feature,com.aptana.feature,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/com.aptana.feature_6.0.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,com.aptana.feature.rcp,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/com.aptana.feature.rcp_6.0.0.201506290132.jar
Artifact not found: binary,com.aptana.feature.rcp_root,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/binary/com.aptana.feature.rcp_root_6.0.0.201506290132
Artifact not found: binary,com.aptana.feature.rcp_root.win32.win32.x86,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/binary/com.aptana.feature.rcp_root.win32.win32.x86_6.0.0.201506290132
Artifact not found: org.eclipse.update.feature,com.aptana.feature.studio,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/com.aptana.feature.studio_6.0.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,com.aptana.ide.feature.libraries.subscription,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/com.aptana.ide.feature.libraries.subscription_6.0.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,com.pandora.cef3.feature,2.0.0.201506290137.
http://update.dcloud.net.cn/test/update/features/com.pandora.cef3.feature_2.0.0.201506290137.jar
Problems downloading artifact: osgi.bundle,com.pandora.editor.dynamicpage,1.0.0.201506252017.
MD5值不正确。预计MD5值：1f9bfa00ebfef90dc641b85304bb5f54 实际MD5值 32d34ce229ef7d066098ea16e66e45e5，请重新检查更新。
Artifact not found: org.eclipse.update.feature,com.pandora.feature,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/com.pandora.feature_6.0.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,com.pandora.inputmethod.feature,1.0.0.201506290137.
http://update.dcloud.net.cn/test/update/features/com.pandora.inputmethod.feature_1.0.0.201506290137.jar
Artifact not found: org.eclipse.update.feature,com.pandora.mem.feature,1.0.0.201506290137.
http://update.dcloud.net.cn/test/update/features/com.pandora.mem.feature_1.0.0.201506290137.jar
Artifact not found: org.eclipse.update.feature,com.pandora.mobile.feature,1.0.0.201506290137.
http://update.dcloud.net.cn/test/update/features/com.pandora.mobile.feature_1.0.0.201506290137.jar
Artifact not found: binary,io.hbuilder.www.root.feature_root,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/binary/io.hbuilder.www.root.feature_root_6.0.0.201506290132
Artifact not found: binary,io.hbuilder.www_root.win32.win32.x86,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/binary/io.hbuilder.www_root.win32.win32.x86_6.0.0.201506290132
Artifact not found: org.eclipse.update.feature,org.eclipse.babel.nls_eclipse_zh,3.7.0.201506290132.
http://update.dcloud.net.cn/test/update/features/org.eclipse.babel.nls_eclipse_zh_3.7.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,org.eclipse.babel.nls_rt.equinox.p2_zh,3.7.0.201506290132.
http://update.dcloud.net.cn/test/update/features/org.eclipse.babel.nls_rt.equinox.p2_zh_3.7.0.201506290132.jar
Artifact not found: org.eclipse.update.feature,org.radrails.rails,6.0.0.201506290132.
http://update.dcloud.net.cn/test/update/features/org.radrails.rails_6.0.0.201506290132.jar