安装 dspace 时出现以下错误：
test_database:
[java] Failure during kernel init: Key for add operation must be defined!
[java] java.lang.IllegalArgumentException: Key for add operation must be defined!
[java] at org.apache.commons.configuration.tree.DefaultExpressionEngine.prepareAdd(DefaultExpressionEngine.java:420)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.addPropertyDirect(HierarchicalConfiguration.java:383)
[java] at org.apache.commons.configuration.AbstractConfiguration.addPropertyValues(AbstractConfiguration.java:423)
[java] at org.apache.commons.configuration.AbstractConfiguration.append(AbstractConfiguration.java:1271)
[java] at org.apache.commons.configuration.ConfigurationUtils.convertToHierarchical(ConfigurationUtils.java:252)
[java] at org.apache.commons.configuration.CombinedConfiguration$ConfigData.getTransformedRoot(CombinedConfiguration.java:943)
[java] at org.apache.commons.configuration.CombinedConfiguration.constructCombinedNode(CombinedConfiguration.java:793)
[java] at org.apache.commons.configuration.CombinedConfiguration.getRootNode(CombinedConfiguration.java:626)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.fetchNodeList(HierarchicalConfiguration.java:958)
[java] at org.apache.commons.configuration.CombinedConfiguration.fetchNodeList(CombinedConfiguration.java:739)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.getProperty(HierarchicalConfiguration.java:344)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.setProperty(DSpaceConfigurationService.java:354)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.setDynamicProperties(DSpaceConfigurationService.java:539)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.loadInitialConfig(DSpaceConfigurationService.java:504)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.<init>(DSpaceConfigurationService.java:87)
[java] at org.dspace.servicemanager.DSpaceKernelImpl.start(DSpaceKernelImpl.java:148)
[java] at org.dspace.servicemanager.DSpaceKernelImpl.start(DSpaceKernelImpl.java:128)
[java] at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:49)
[java] Exception in thread "main" java.lang.IllegalStateException: Failure during kernel init: Key for add operation must be defined!
[java] at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:65)
[java] Caused by: java.lang.IllegalArgumentException: Key for add operation must be defined!
[java] at org.apache.commons.configuration.tree.DefaultExpressionEngine.prepareAdd(DefaultExpressionEngine.java:420)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.addPropertyDirect(HierarchicalConfiguration.java:383)
[java] at org.apache.commons.configuration.AbstractConfiguration.addPropertyValues(AbstractConfiguration.java:423)
[java] at org.apache.commons.configuration.AbstractConfiguration.append(AbstractConfiguration.java:1271)
[java] at org.apache.commons.configuration.ConfigurationUtils.convertToHierarchical(ConfigurationUtils.java:252)
[java] at org.apache.commons.configuration.CombinedConfiguration$ConfigData.getTransformedRoot(CombinedConfiguration.java:943)
[java] at org.apache.commons.configuration.CombinedConfiguration.constructCombinedNode(CombinedConfiguration.java:793)
[java] at org.apache.commons.configuration.CombinedConfiguration.getRootNode(CombinedConfiguration.java:626)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.fetchNodeList(HierarchicalConfiguration.java:958)
[java] at org.apache.commons.configuration.CombinedConfiguration.fetchNodeList(CombinedConfiguration.java:739)
[java] at org.apache.commons.configuration.HierarchicalConfiguration.getProperty(HierarchicalConfiguration.java:344)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.setProperty(DSpaceConfigurationService.java:354)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.setDynamicProperties(DSpaceConfigurationService.java:539)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.loadInitialConfig(DSpaceConfigurationService.java:504)
[java] at org.dspace.servicemanager.config.DSpaceConfigurationService.<init>(DSpaceConfigurationService.java:87)
[java] at org.dspace.servicemanager.DSpaceKernelImpl.start(DSpaceKernelImpl.java:148)
[java] at org.dspace.servicemanager.DSpaceKernelImpl.start(DSpaceKernelImpl.java:128)
[java] at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:49)
BUILD FAILED
/Users/uttam/Desktop/Epub/edoc-dspace-source/dspace/target/dspace-
installer/build.xml:792: Java returned: 1
我有一个工作空间，但在清理 dspace 数据库后，我不断收到此错误消息。我已经厌倦了在干净擦除后重新安装 postgresql，但我不断收到此错误，关于可能导致此问题的原因的任何建议？
现在，如果我想从头开始"mvn 包"工作，但之后"蚂蚁fresh_install"会抛出此错误。
好的，我现在知道问题是什么了。此错误代码与 dspace 源文件夹中的配置文件（.cfg）有关。我的本地文件中有一些特殊字符.cfg我不知何故设法忽略了这一点，删除这些特殊字符解决了这种情况。
就我而言，我将 dspace 6.0 与这些依赖项一起使用，
-
阿帕奇-蚂蚁-1.8.0
-
Apache-maven-3.1.0
-
阿帕奇-雄猫-7.0.69
-
JDK-7U79-视窗
-
Postgresql-9.5.2
错误发生 then.so 我将dSpace更新到6.3版本，然后不会发生错误。