Object use to configure lift to use slf4j for as internal logging. Note that slf4j back-end should be configured previously to use Slf4jLogBoot. To use it, call Slf4jLogBoot.enable():

 package bootstrap.liftweb

 import _root_.net.liftweb.util._
 ...
 class Boot {
   def boot {
     Slf4jLogBoot.enable()
     ...
 

You have to add slf4j (and/or the backend) as dependency of your webapp, and you could exclude log4j. I (DavidB) highly recommand using logback as backend for slf4j. ex, add in your pom.xml:

    <dependency>
      <groupId>net.liftweb</groupId>
      <artifactId>lift-webkit</artifactId>
      <version>0.7</version>
      <exclusions>
        <exclusion>
          <groupId>log4j</groupId>
          <artifactId>log4j</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>0.9.8</version>
    </dependency>