i am having difficults to repair my eclipse due this problem:
"A JRE or JDK must be available in order to run eclipse. No virtual machine
was found"
i looked the path that contains the \bin file to that is missing and realized that my jdk and jre has different versions (jdk 1.8.0_102 jre 1.8.0_112)
could be this the problem? if yes, how can i update them both?
i search in the oracle website but didn't found an older version of jre
how could be the better way to fiz this problem,
tks
Solution regarding no java (no virtual machine)
Eclipse - no Java (JRE) / (JDK) ... no virtual machine
Solution regarding class path in eclipse
https://stackoverflow.com/a/41118900/6721308
Related
I have downloaded "eclipse-jee-juno-SR1-linux-gtk-x86_64.tar.gz" from www.eclipse.org for linux-64 bit OS.
When i tried to run the installer, by double clicking on it. It showed the error
"A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java Virtual Machine was found after searching the following locations:
/home/shubham14/Downloads/Softwares/eclipse-jee-juno-SR1-linux-gtk-v86_64/eclipse/jre/bin/java
java in your current path."
I dont understand why this error has occured since i have jdk 14 already installed and its path is also set.
I have formatted my Mac due to some storage issues. Before this, I used Eclipse in a proper way. Now i have installed the JDK
Then, i have installed Java
Until now everything seems to be correct but when I open the Eclipse installer...
What can I do to fix this? I need to work with this the soon as possible.
Thanks
Eclipse on macOS will not start with Java 14 installed, this is being tracked in Eclipse bug 561273.
Installing Java 8 as well does not help. You need to remove the Java 14 install. You could use the Java 13.0.2 release instead.
Eclipse have determined that the root cause of this issue is a change in Java 14 which is described in this bug report JDK-8238225. The fix for this should be in Java 14.0.1
Update: Eclipse runs fine with Oracle Java 14.0.1 so the issue has been fixed.
I also asked this question which was closed, that's why I answer what I have found out: Eclipse will not install on Mac OS Catalina 10.15.4, saying the above error message
Failed to create the Java Virtual Machine.
Deinstalling jdk and install an older one wouldn't help on its own because Eclipse is refusing to install in the first place (as mentioned above). What I have done:
i´ve installed an JDK with boost (you can try several, mine worked with Version 13)
I edited the installer:
Download the dmg file
convert the dmg-file with "hdiutil convert /dev/disk3s1 -format UDRW -o devimage"
mount the converted dmg-file with: "hdiutil attach -owners on devimage.dmg -shadow"
Edit the /Volumes/Eclipse/Eclipse.app/Contents/Info.plist: there is a section which is commented and there you can try the jdk version. You have to give the full path to the java executable, for example:
<string>-vm</string><string>/Library/Java/JavaVirtualMachines/jdk-13.0.2.jdk/Contents/Home/bin/java</string>
Then my eclipse started from the (already) mounted Eclipse image without complaining
I had the same issue myself a while back. In your Eclipsepedia it provided an example of what the eclipse.ini file looks like when your trying to specify a JVM. So just change the eclipse.ini file and then make sure that you have all of the correct documents in that path to match the example.
When I download and install Java 8 (JRE) from: http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
I can see the folowing registry key:
[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment]
"CurrentVersion"="1.8"
However if I download and install Java 8 (JRE) from:
https://www.java.com/en/download/
I got the following registry key:
[HKEY_CURRENT_USER\Software\JavaSoft\DeploymentProperties]
I need to detect if Java 8 (JRE) is installed, should I check them both? Are there other registry location I need to check?
What’s are the differences between the two installers? Are they both providing the same Java JRE or there are any differences?
Thanks
Maybe I would try different approach, try look for java(w).exe on system variable PATH. It should point to latest installation of JRE - assuming latest directory entry in PATH.
Also if your application require specific JVM then its also possible to include JRE with your application. Just pack it inside and make sure your JRE is started. Many companies doing it for very good reason.
You should consider 32bit installations on a 64 bit machine as well.
In Microsoft's techNet site I found a vbs script to be used to determine the java version. Hope it helps. TechNet article on determining the version of java on windows
I am trying to install JBoss Developer Studio 9 on Windows using executable JAR file.
I have Java in my machine and set the PATH and JAVA_HOME environment variables.
But while launching the jar, I am facing this error:
Java virtual machine launcher couldn't find the main class program will exit
Could some one please help me in resolving this.
Try to use devstudio-10.4.0.GA-installer-eap.jar from here. I tried that.
Not sure what the issue was but for future reference the install docs / guides for Developer Studio 9.1 are located here:
https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Developer_Studio/9.1/html-single/Install_Red_Hat_JBoss_Developer_Studio/index.html#Install_JBoss_Developer_Studio_Stand-alone_and_JBoss_EAP
Instructions may be written for linux users, but the same instructions apply on Windows or OSX once you're in a console.
Note that Java 8 is required for Developer Studio 9 and 10, so if that's not your default JDK (eg., JDK 7 is your default, or is found in your PATH before the entry for JDK 8), the installer likely won't work.
Perhaps that's the problem that was reported here?
When I open adt-bundle-windows-x86_64-20131030 and click on the Eclipse.exe application to install it I get the message; A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java Virtual Machine was found after searching the following locations: C:\users\username\desktop\development\adt-bundle-windows-x86_64-20131030\eclipse\jre\bin\javaw.exe
javaw.exe is your current PATH.
I do have JDK, and JRE on this computer, I need them to view the emulator for my job. I have tried uninstalling and reinstalling Java with the same results. What can I do to fix this problem?
You will have to put Java in your classpath, so Eclipse knows where it can find Java. See here: http://docs.oracle.com/javase/tutorial/essential/environment/paths.html for info on how to do this.
install 32 bit version of jdk from oracle website
put the path of your java bin directory under Environment variables.
System->Advanced System Settings->Environment Variables->path
Open command prompt. use java and javac commands to know if you have successfully installed java and compiler.
if it doesn't help, this question has a lot of helpful answers
Eclipse - no Java (JRE) / (JDK) ... no virtual machine
From what you said:
"'java' is not recognized as an internal or external command, operable program or batch file"
Your java may not have been installed correctly, or, it was installed, but you did not set path to it correctly. It is not a problem with ADT, any of your programs that need Java will not be able to find it.