Error - cannot log with log4j

Question

I am trying to use `log4j 1.2 jar` in my `hibernate 3.1` (in `eclipse`) example project. The java code runs perfecly, but the console shows me the following `log4j` warnings - ``` log4j:ERROR Could not find value for key log4j.appender.stdout log4j.logger.org.hibernate.info log4j:ERROR Could not instantiate appender named "stdout log4j.logger.org.hibernate.info". ``` I have referenced the following - - log4j-1.2.17.jar - slf4j-api-1.6.0.jar - slf4j-simple-1.6.0.jar My log4j.properties file contains - ``` ### Direct log messages to stdout ### log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n ### set log levels - ### log4j.rootLogger=warn, stdout log4j.logger.org.hibernate.info ### log JDBC bind parameters ### log4j.logger.org.hibernate.type=debug ###log schema export/update ### log4j.logger.org.hibernate…

Accepted Answer

This line:

```
### Set Log Levels - ### 
log4j.rootLogger=warn, stdout log4j.logger.org.hibernate=info 
```

Should be broken into two lines:

```
log4j.rootLogger=warn, stdout 
log4j.logger.org.hibernate=info
```

Wow ! As a newbie. I would have never figured out something like this.

The code I use finally is here -

```
### Direct log4j properties to STDOUT ###  
log4j.appender.stdout=org.apache.log4j.ConsoleAppender  
log4j.appender.stdout.Target=System.out  
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout  
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### Set Log Levels - ###  
log4j.rootLogger=warn, stdout  
log4j.logger.org.hibernate=info

### Log JDBC Bind Parameters ###  
log4j.logger.org.hibernate.type=debug

### Log schema/export update ###  
log4j.logger.org.hibernate.tool.hbm2ddl=debug 
```

Error - cannot log with log4j

Solution

Problem