????????? 发现网上使用birt开发的人不是非常多，碰上问题很难解决，本人也是多次尝试后获取的结果(部分参考网上结论)， 本人birt序列文章属于个人在研究学习使用birt过程中的笔记，纯属个人记录。
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?????????? 将使用myeclipse创建的报表放在eclipse环境下运行，在访问报表的时候报如下错:
严重: Unable to determine the default workspace location. Check your OSGi-less platform configuration of the plugin or datatools workspace path.十一月 13, 2015 10:07:18 上午 org.eclipse.datatools.connectivity.internal.ConnectivityPlugin log严重: Unable to determine the default workspace location. Check your OSGi-less platform configuration of the plugin or datatools workspace path.java.lang.IllegalStateException: Unable to determine the default workspace location. Check your OSGi-less platform configuration of the plugin or datatools workspace path. at org.eclipse.datatools.connectivity.internal.ConnectivityPlugin.getDefaultStateLocation(ConnectivityPlugin.java:156) at org.eclipse.datatools.connectivity.internal.ConnectivityPlugin.getWorkspaceFilePath(ConnectivityPlugin.java:179) at org.eclipse.datatools.connectivity.drivers.DriverManager.wereDefaultDriversCreated(DriverManager.java:549) at org.eclipse.datatools.connectivity.drivers.DriverManager.resetDefaultInstances(DriverManager.java:840) at org.eclipse.datatools.connectivity.drivers.DriverManager.<init>(DriverManager.java:125) at org.eclipse.datatools.connectivity.drivers.DriverManager.getInstance(DriverManager.java:67) at org.eclipse.datatools.connectivity.DriverConnectionBase.getDriverDefinition(DriverConnectionBase.java:136) at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:79) at org.eclipse.datatools.enablement.internal.oracle.JDBCOracleConnectionFactory.createConnection(JDBCOracleConnectionFactory.java:27) at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83) at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359) at org.eclipse.datatools.connectivity.sqm.internal.core.connection.ConnectionInfoImpl.initializeJDBCConnection(ConnectionInfoImpl.java:705) at org.eclipse.datatools.connectivity.sqm.internal.core.connection.ConnectionInfoImpl.<init>(ConnectionInfoImpl.java:690) at org.eclipse.datatools.connectivity.sqm.internal.core.connection.ConnectionFactory.createConnection(ConnectionFactory.java:38) at org.eclipse.datatools.connectivity.sqm.core.SQMConnectionFactory.createConnection(SQMConnectionFactory.java:45) at org.eclipse.datatools.connectivity.sqm.internal.core.connection.ConnectionFactory.createConnection(ConnectionFactory.java:59) at org.eclipse.datatools.connectivity.internal.ConnectionFactoryAdapterProvider.createConnection(ConnectionFactoryAdapterProvider.java:114) at org.eclipse.datatools.connectivity.internal.ManagedConnection.createConnection(ManagedConnection.java:163) at org.eclipse.datatools.connectivity.internal.CreateConnectionJob.run(CreateConnectionJob.java:56) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
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? 找到报表文件中，一下部分(数据库不同详细内容可能也会存在差别):
<ex-property> <name>org.eclipse.datatools.connectivity.driverDefinitionID</name> <value>DriverDefn.org.eclipse.datatools.enablement.oracle.10.driverTemplate.Oracle Thin Driver</value> </ex-property>
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将这个节点内容注释问题解决.
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