升级失败签名错误

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.pandora.tools.android.win32.x86,1.0.0.201509142143.
MD5值不正确。预计MD5值：a3575aed1b07edcba493e861b8ded014 实际MD5值 82ea10360bf4000ec0c4ae62df574ac1，请重新检查更新。