程序包org.slf4j不存在

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.16.10</version>
    <scope>compile</scope>
</dependency>
 
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.6.1</version>
</dependency>

一個是scope 

<scope>compile</scope>

一個是 加slf4j-api 依賴