Starting Tomcat v7.0 Server at localhost' has encountered a problem.

初學Spring MVC，遇到加載項目後，沒法啓動tomcat的狀況：html 而後出現各類錯誤；java 嚴重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start compone

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