java.lang.NoSuchMethodError: org.apache.tomcat.InstanceManager.backgroundProcess()V
    at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5559) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1353) [tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1357) [tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1357) [tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1335) [tomcat-embed-core-9.0.27.jar:9.0.27]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_151]
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [na:1.8.0_151]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_151]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [na:1.8.0_151]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_151]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_151]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.27.jar:9.0.27]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_151]

Comment From: y00112

大家知道这个问题应该怎么去解决吗?

Comment From: y00112

solved

Comment From: sagarkalehpe

What is the solution ?