Unable to find plug-in: org.eclipse.equinox.launcher_1.0.200.v20090520.

当我在做RCP如何多出到多平台时，碰到一个问题Unable to find plug-in: org.eclipse.equinox.launcher_1.0.200.v20090520.Please check the error log for more details.eclipse.buildId=M20090917-0800java.version=1.6.0_03java.vendor=Sun Microsystems Inc.BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CNFramework arguments: -product org.eclipse.epp.package.jee.productCommand-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product这个问题有可能是：eclipse版本和delta的版本不一致的原因。This is generally caused by having a delta pack that is a different
version from the rest of your target.

For example, if you have a 3.4.1 eclipse, but a 3.4 deltapack.

More specifically, in this case you end up with 2 different versions of
the org.eclipse.equinox.launcher bundle (and maybe also the fragments).
Only one of those will be resolved for use in the build, generally the
one with the higher version. The org.eclipse.equinox.executable feature
includes a specific version of the launchers, if it is asking for the
lower version, then it probably won't find it since it was the higher
version that got resolved.