我有一个用于extjs的自定义spring roo插件，我将它放入bundle目录并删除了缓存目录但是当我通过msdos启动控制台时，我在入口处有下一个消息：
ERROR: Bundle com.xxx.xxx.addons.extjs [7] Error starting file:/K:/Software/springsource32/springsource/spring-roo-1.2.2.RELEASE/bundle/com.xxx.xxx.addons.extjs-2.0.2.jar (org.osgi.framework.BundleException: Unresolved constraint in bundle com.xxx.xxx.addons.extjs [7]: Unable to resolve 7.0:
missing requirement [7.0] package; (&(package=org.apache.commons.io)(version>=1.4.0)(!(version>=2.0.0))))
org.osgi.framework.BundleException: Unresolved constraint in bundle com.xxx.xxx.addons.extjs [7]: Unable to resolve 7.0: missing requirement [7.0] pack
age; (&(package=org.apache.commons.io)(version>=1.4.0)(!(version>=2.0.0)))
at org.apache.felix.framework.Felix.resolveBundle(Felix.java:3564)
at org.apache.felix.framework.Felix.startBundle(Felix.java:1797)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1192)
at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:266)
at java.lang.Thread.run(Thread.java:722)
我不知道为什么会发生这种情况并且不知道该检查什么，有人可以帮助我吗？