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java.lang.NullPointerException: null

有没有人遇到启动报空指针错误的？

java.lang.NullPointerException: null
   at org.flowable.engine.impl.db.ProcessDbSchemaManager.dbSchemaUpdate(ProcessDbSchemaManager.java:186)
   at org.flowable.engine.impl.db.ProcessDbSchemaManager.performSchemaOperationsProcessEngineBuild(ProcessDbSchemaManager.java:315)
   at org.flowable.engine.impl.SchemaOperationsProcessEngineBuild.execute(SchemaOperationsProcessEngineBuild.java:28)
   at org.flowable.engine.impl.interceptor.CommandInvoker$1.run(CommandInvoker.java:51)
   at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:93)
   at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
   at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)