为提高效率，提问时请提供以下信息，问题描述清晰可优先响应。
【DM版本】:v8
【操作系统】：
【CPU】:
【问题描述】*：这是我的外键
报错信息如下：
[ERROR] 2023-03-08 13:56:57.437> TaskDispatcher Error
java.lang.NullPointerException
at com.dameng.dts.core.transformer.TransformerExecutor.analyzeTasks(TransformerExecutor.java:462)
at com.dameng.dts.core.transformer.BaseExecutor.dispatchTasks(BaseExecutor.java:808)
at com.dameng.common.task.TaskExecutor$TaskDispatcher.run(SourceFile:605)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)