When i am starting jmeter than it showing the follwing error An error occurred: null
My process to start jmeter is
root@L411:/opt/apache-jmeter-2.12/bin# sh jmeter An error occurred: null
You must have a stable network connection while installing new software update. Unstable network may be a reason that you are receiving iOS software update failed error messages. You need to make sure you have stable wifi connection.
Sometimes, an iOS software update failure can appear if your device doesn't have enough space to download and install an update. So you need to manage the storage to free up some space by deleting unwanted apps, photos, videos, cache, and junk files, etc.
This happened to me as well. In my case, I was running Jmeter 2.13 on OpenJDK 1.8 on my 64-bit Linux machine. I fixed it by installing Oracle's Java instead, and switching to it with:
alternatives --config java
I'm a bit annoyed that I have to do this now, as it used to work before (I think).
What OS are you using? I was getting the same error in Fedora 27 and I fixed it by installing the OpenJDK runtime environment (java-1.8.0-openjdk)
sudo dnf install java-1.8.0-openjdk
If after executing jmeter.sh your apache-jmeter-x.xx/bin/jmeter.log contains something like
Exception in thread "AWT-EventQueue-0" java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:173)
you probably have default-jdk-headless
installed.
Installing default package (sudo yum install java-1.8.0-openjdk
) fixed the issue for me.
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