今天启动我的spring-boot项目时报了如下的错误：

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APPLICATION FAILED TO START
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Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
    java.lang.invoke.MethodHandleNatives.resolve(Native Method)
The following method did not exist:
    com.google.gson.GsonBuilder.setLenient()Lcom/google/gson/GsonBuilder;
The method's class, com.google.gson.GsonBuilder, is available from the following locations:
    jar:file:/J:/maven_repository/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar!/com/google/gson/GsonBuilder.class
The class hierarchy was loaded from the following locations:
    com.google.gson.GsonBuilder: file:/J:/maven_repository/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of com.google.gson.GsonBuilder

意思就是找不到 com.google.gson.GsonBuilder.setLenient() 方法， gson-2.2.4.jar 中的 GsonBuilder 类确没有这个方法。初步判断这应该是gson库的版本不匹配造成的

google上找了一下，找到stackoverflow上的如下帖子： 《Why do I get Gson builder error when starting a Spring Boot application?》 知道了原因， org.springframework.boot:spring-boot-autoconfigure:2.5.6 包中的GsonAutoConfiguration类中引用了 com.google.gson.GsonBuilder.setLenient() ‘方法，应该是较高的gson版本。 我的项目中引用的 org.apache.phoenix:phoenix-core:4.14.0-cdh5.14.2 库也依赖gson 2.2.4库，替换了 spring-boot-autoconfigure 中引用的gson高版本，导致错误发生。