Kafka installation - classpath is empty

Question

I try to install kafka on my windows(8), and it's not work.

I download kafka and extract it on c:\\kafka after it i change the server.properties and zookeeper.properties.

I set in those file the logs path.

I even try to download an tun zookeper outside the kafka install but the zookeeper runing and the kafka not.

the Error that i get when i try to run this command is:

bin\windows\zookeeper-server-start.bat .config\zookeeper.properties

and this is the result:

Classpath is empty. Please build the project first e.g. by running 'gradlew jarAll'

Answer 1

The solutions is to Download the binary jar file.

go to config\\server.properties and config\\zookeeper.properties and change the folder. the new folder need to be write with / and not .

and after it you need to got the main folder and run the command:

bin\windows\zookeeper-server-start.bat config\zookeeper.properties

without the . before "config\\zookeeper.properties"

Answer 2

I have provided the answer for the similar error here , check this out. https://i-am-jabi.medium.com/fixing-classpath-is-empty-69288c1509a2

Here are the steps to resolve the issue:

1. Open kafka-run-class.bat file. You will find this in bin\\windows folder of your confluent Kafka.
2. Search for “rem Classpath addition for core” in kafka-run-class.bat file. When you find it, it looks like below.

Now lets add the below snippet above the “rem Classpath addition for core” line in kafka-run-class.bat file.

rem classpath addition for LSB style path
if exist %BASE_DIR%\share\java\kafka\* (
 call:concat %BASE_DIR%\share\java\kafka\*
)

After adding the above snippet, your file will look like this.

Now, when you run the bat files under windows folder, they will run fine without any issues. Here is the zookeeper start log after fixing the classpath error.