Solr_Stacktrace

ERROR - 2014-03-27 11:30:26.198; org.apache.solr.core.CoreContainer; Unable to create core: collection1
org.apache.solr.common.SolrException: Could not load core configuration for core collection1
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:66)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:554)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:261)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:253)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.solr.common.SolrException: Error loading solr config from /home/hackers/trunk/solr/example/solr/collection1/solrconfig.xml
	at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:148)
	at org.apache.solr.core.ConfigSetService.createSolrConfig(ConfigSetService.java:79)
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:61)
	... 9 more
Caused by: org.apache.solr.common.SolrException: No system property or default value specified for dataimport.config value:${dataimport.config}
	at org.apache.solr.util.PropertiesUtil.substituteProperty(PropertiesUtil.java:66)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:292)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.core.Config.<init>(Config.java:141)
	at org.apache.solr.core.Config.<init>(Config.java:86)
	at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:161)
	at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:144)
	... 11 more
ERROR - 2014-03-27 11:30:26.203; org.apache.solr.common.SolrException; null:org.apache.solr.common.SolrException: Unable to create core: collection1
	at org.apache.solr.core.CoreContainer.recordAndThrow(CoreContainer.java:911)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:568)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:261)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:253)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.solr.common.SolrException: Could not load core configuration for core collection1
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:66)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:554)
	... 8 more
Caused by: org.apache.solr.common.SolrException: Error loading solr config from /home/hackers/trunk/solr/example/solr/collection1/solrconfig.xml
	at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:148)
	at org.apache.solr.core.ConfigSetService.createSolrConfig(ConfigSetService.java:79)
	at org.apache.solr.core.ConfigSetService.getConfig(ConfigSetService.java:61)
	... 9 more
Caused by: org.apache.solr.common.SolrException: No system property or default value specified for dataimport.config value:${dataimport.config}
	at org.apache.solr.util.PropertiesUtil.substituteProperty(PropertiesUtil.java:66)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:292)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.util.DOMUtil.substituteProperties(DOMUtil.java:300)
	at org.apache.solr.core.Config.<init>(Config.java:141)
	at org.apache.solr.core.Config.<init>(Config.java:86)
	at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:161)
	at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:144)
	... 11 more