Include the following libraries. Go the respective links, in the table, in the 4th row, is the jar file. Downlaod that. https://mvnrepository.com/artifact/org.slf4j/slf4j-api/1.7.9 https://mvnrepository.com/artifact/org.slf4j/slf4j-simple/1.7.9 https://mvnrepository.com/artifact/org.beryx/text-io/3.3.0
To include them in eclipse go to Project -> Properties -> BuildPath -> Add External Jars.