slf4j has more implements. but you have none in you class path, that is the reason.
add it
gradle example
build.gradle
```
dependencies { implementation 'org.slf4j:slf4j-log4j12:1.7.36' }
```
slf4j has more implements. but you have none in you class path, that is the reason.
add it
gradle example
build.gradle
```
dependencies { implementation 'org.slf4j:slf4j-log4j12:1.7.36' }
```