在idea中使用truelicense开发license授权时，启动工程报错LicenseManager类找不到：nested exception is java.lang.NoClassDefFoundError: de/schlichtherle/license/LicenseManager。
具体错误如下：
```
org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: de/schlichtherle/license/LicenseManager
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1006) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) [tomcat-embed-core-8.5.31.jar:8.5.31]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.31.jar:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.31.jar:8.5.31]
Caused by: java.lang.ClassNotFoundException: de.schlichtherle.license.LicenseManager
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_191]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_191]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_191]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_191]
	... 55 common frames omitted
```
看了工程中的类，实际是有这些类的，我的maven引用如下：
```xml
		<dependency>
			<groupId>de.schlichtherle.truelicense</groupId>
			<artifactId>truelicense-core</artifactId>
			<version>1.33</version>
			<scope>provided</scope>
		</dependency>
```
类如下：
![](http://img.classinstance.cn/20220825/1661407344555.jpg)
找了半天不知道哪有问题，于是看到上面的maven引用scope是provided，于是将这个属性去掉，在idea中重启工程就不会报类找不到的错误了！！！不得其解，希望能帮到需要的人。
也可以参考一下这篇文章：https://blog.csdn.net/yangguang_98/article/details/121329522

ClassInstance

java.lang.NoClassDefFoundError: de/schlichtherle/license/LicenseManager

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