Why does the 'e' flag and manifest with the 'Main-Class' attribute cannot be specified together! error occur?

Question

Java

hello.
Probably I will ask a simple question, BUT still:
folder structure
-src
- Prometheus
First.class
Manifest.txt
wrote sh

javac Prometheus/First.java
java -cp . Prometheus.First
#jar cvfm first.jar Manifest.txt -C Prometheus/ .
jar cfme First.jar Manifest.txt Prometheus.First Prometheus/First.class
java -jar First.jar

building First.jar returns error

@worker01:~/IntelliJIDEAProjects/prometheus_example_node_exporter/src$ ./compile.sh 
Hello World New!!!
'e' flag and manifest with the 'Main-Class' attribute cannot be specified 
together!

link to repository
How to solve this problem?

Answer 1

You have a class in your manifest where main. And jar cfme attribute e specifies main class. Gotta leave one thing