Exception NoClassDefFoundError: org/slf4j/LoggerFactory
I am got tired of this java.lang.ClassNotFoundException: org.slf4j.LoggerFactory error. I followed this link: https://www.traccar.org/install-digitalocean for Traccar-4.5 installation. Please provide me details in steps how to upload new build to the linux machine server. I am getting every time this error. Even I upload the same traccar-4.5 build without any changes.
I am not finding the proper solution even after new installation.
If you download the installer from here https://www.traccar.org/download/ you will have no issues running v4.5.
If you need to build from source then use this link https://www.traccar.org/build/. But don't use Maven, use Gradle. It is very simple. All you need to install on the build server is a JDK of your choice. I use OpenJDK.
Thanks @bzark. Yes, I want to upload the build from the source code. Can you have look on this answer https://www.traccar.org/forums/topic/upgrading-my-server-from-312-to-45/#post-44045?
Can you write the steps for building the code for 4.5 as I have written in this answer?
The build process couldn't be any easier thanks to Anton. I use AWS EC2 instance for traccar and my setup and build process is below.
JAVA
add-apt-repository ppa:linuxuprising/java
apt-get install oracle-java11-installer
traccar
git clone --recursive https://github.com/traccar/traccar.git --branch v4.5
cd traccar
./gradlew build
cp target/tracker-server.jar /opt/traccar/
Hi @bzark,
Thank you for the response. I tried what you have wrote. And after that I tried this - java -jar target/tracker-server.jar debug.xml.
It is saying jdbc.Driver not found.
That isn't how you run traccar. You have to install traccar from the installer package and then use the start/stop scripts. The last step below copies the jar file you built from source code.
cp target/tracker-server.jar /opt/traccar/
So you are saying that I need to setup for oracle java, then I need to clone the Traccar-4.5 repository and build the gradle.
After this I can go for https://www.traccar.org/install-digitalocean/ and upload my new jar file and start the traccar service by using the systemctl start traccar.service.
Yes.
Thanks.
Okay thanks.