spring cloud config 用git 做远程仓库配置中心启动报错

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spring.cloud.config.server.git-org.springframework.cloud.config.server.ssh.SshUriProperties': Could not bind properties to SshUriProperties (prefix=spring.cloud.config.server.git, ignoreInvalidFields=false, ignoreUnknownFields=true, ignoreNestedProperties=false); nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.config.server.ssh.PrivateKeyValidator': Failed to introspect bean class [org.springframework.cloud.config.server.ssh.PrivateKeyValidator] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: com/jcraft/jsch/JSchException

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.config.server.ssh.PrivateKeyValidator': Failed to introspect bean class [org.springframework.cloud.config.server.ssh.PrivateKeyValidator] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: com/jcraft/jsch/JSchException

Caused by: java.lang.ClassNotFoundException: com.jcraft.jsch.JSchException
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_144]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_144]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_144]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_144]
... 79 common frames omitted