Eclipse - Failed to load class org slf4j impl StaticLoggerBinder

Question

Possible Duplicate    SLF4J  Failed to load class org slf4j impl StaticLoggerBinder error       I am using eclipse juno to run someone s else Java code using maven m2eclipse plugin   But I am getting following message   SLF4J  Failed to load class  org slf4j impl StaticLoggerBinder   SLF4J  Defaulting to no-operation  NOP  logger implementation SLF4J  See http   www slf4j org codes html StaticLoggerBinder for further details    On the official website  I found the following fix for this problem   This error is reported when the org slf4j impl StaticLoggerBinder class could not be loaded into memory   This happens when no appropriate SLF4J binding could be found on the class path   Placing one  and only one  of slf4j-nop jar  slf4j-simple jar  slf4j-log4j12 jar  slf4j-jdk14 jar or logback-classic jar on the class path should solve the problem    So I copied slf4j-simple jar in  C  Program Files Java jdk1 7 0 07 lib   But I am still getting error   Please guide me what is correct solution  I am a Java newbie   Also can someone please mention what exactly should be the value for JAVA HOME  CLASSPATH and CLASS variables  I am confused whether it should be path of jre or jdk or any   UPDATE   Following dependency for slf4j are there in project pom xml     lt dependency gt              lt groupId gt org slf4j lt  groupId gt              lt artifactId gt slf4j-api lt  artifactId gt              lt version gt 1 5 6 lt  version gt              lt type gt jar lt  type gt   lt  dependency gt   lt dependency gt              lt groupId gt org slf4j lt  groupId gt              lt artifactId gt slf4j-simple lt  artifactId gt              lt version gt 1 5 6 lt  version gt   lt  dependency gt    I have updated my project  Also the slf4j-api-1 5 6 jar and slf4j-simple-1 5 6 jar are showing up in  Maven dependencies  in my project  And org slf4j impl StaticLoggerBinder class is also present in slf4j-simple-1 5 6 jar

User · Accepted Answer

Eclipse Juno  Indigo and Kepler when using the bundled maven version m2e   are not suppressing the message SLF4J  Failed to load class  org slf4j impl StaticLoggerBinder   This behaviour is present from the m2e version 1 1 0 20120530-0009 and onwards    Although  this is indicated as an error your logs will be saved normally  The highlighted error will still be present until there is a fix of this bug  More about this in the m2e support site   The current available solution is to use an external maven version rather than the bundled version of Eclipse  You can find about this solution and more details regarding this bug in the question below which i believe describes the same problem you are facing   SLF4J  Failed to load class  quot org slf4j impl StaticLoggerBinder quot   error

User · Answer

Did you update the project  right-click on the project   Maven     Update project       Otherwise  you need to check if pom xml contains the necessary slf4j dependencies  e g         lt dependency gt           lt groupId gt org slf4j lt  groupId gt           lt artifactId gt jcl-over-slf4j lt  artifactId gt           lt version gt 1 7 0 lt  version gt           lt scope gt runtime lt  scope gt       lt  dependency gt       lt dependency gt           lt groupId gt org slf4j lt  groupId gt           lt artifactId gt slf4j-api lt  artifactId gt           lt version gt 1 7 0 lt  version gt           lt scope gt runtime lt  scope gt       lt  dependency gt       lt dependency gt           lt groupId gt org slf4j lt  groupId gt           lt artifactId gt slf4j-log4j12 lt  artifactId gt           lt version gt 1 7 0 lt  version gt           lt scope gt runtime lt  scope gt       lt  dependency gt       lt dependency gt           lt groupId gt log4j lt  groupId gt           lt artifactId gt log4j lt  artifactId gt           lt version gt 1 2 14 lt  version gt       lt  dependency gt

User · Answer

After placing the jar file in desired location  you need to add the jar file by right click on      Project --  properties --  Java Build Path --  Libraries --  Add Jar

[java] Eclipse - Failed to load class "org.slf4j.impl.StaticLoggerBinder"

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