Could not find class [org.springframework.boot.autoconfigure.condition.OnPropertyCondition]

根据提供的引用内容，这个错误可能是由于缺少spring-boot-autoconfigure-2.3.12.RELEASE.jar包或者该jar包中缺少OnPropertyCondition类导致的。可以尝试重新下载并添加该jar包到项目中，或者升级spring-boot-autoconfigure版本。如果问题仍然存在，可以尝试检查项目中是否存在冲突的jar包或者其他依赖项。此外，也可以尝试在网上搜索类似的问题并查看其他开发者是如何解决的。

相关问题

could not find class org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication

根据提供的引用内容，出现类似“could not find class org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication”的错误通常是由于Spring Boot版本不兼容或者缺少相关依赖所致。解决此问题的方法如下：

1. 确认Spring Boot版本是否兼容。可以在pom.xml文件中检查Spring Boot的版本是否与其他依赖项兼容。如果不兼容，则需要升级或降级Spring Boot版本。

2. 确认是否缺少相关依赖。可以在pom.xml文件中检查是否缺少相关依赖。如果缺少，则需要添加相关依赖。

3. 清除Maven本地仓库。有时候Maven本地仓库中的依赖可能会损坏或者不完整，可以尝试清除Maven本地仓库并重新构建项目。

下面是一个示例pom.xml文件，其中包含了Spring Boot和相关依赖：

<dependencies>
    <!-- Spring Boot -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- Spring Boot Actuator -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

    <!-- Spring Boot Test -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- Spring Boot Security -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <!-- Spring Boot Data JPA -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <!-- MySQL Connector -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
</dependencies>

Could not find class org.mybatis.spring.boot.autoconfigure.MybatisProperties

As an AI language model, I don't have access to your specific codebase or environment. However, this error message usually indicates that there is a problem with the MyBatis configuration in a Spring Boot application. Here are a few possible solutions:

1. Make sure that you have included the necessary dependencies in your `pom.xml` or `build.gradle` file. For example, if you're using Maven, you should have the following dependency:

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>{version}</version>
</dependency>

2. Check your application properties file (`application.properties` or `application.yml`) and make sure that you have configured MyBatis correctly. For example, you might need to specify the location of your mapper files:

mybatis.mapper-locations=classpath:/mapper/*.xml

3. Check your MyBatis configuration file (`mybatis-config.xml`) and make sure that it's properly configured. For example, you might need to specify the type handlers for your database:

<typeHandlers>
    <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler" javaType="com.example.MyEnum"/>
</typeHandlers>

If none of these solutions work, you might need to provide more information about your application and environment.