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Eclipse - no Java (JRE) / (JDK) … no virtual machine
I am trying to get Eclipse Indigo to re-Start on my computer - i have run it before with no problems but now i getting error like this;
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:\eclipse\jre\javaw.exe javaw.exe in your current PATH
How can i rectify this problem?
You can specify JVM in eclipse.ini file at the Eclipse root folder, like this:
-vm
C:\java\jdk1.6.0_24\bin\javaw.exe
This line must be placed before -vmargs options.
and for Linux
-vm
/..java address../bin/java
Try following:
Look at your filesystem and make sure a java instance is installed in the mentioned path
Open Eclipse and check the general preferences from Eclipse. Under 'Java' -> 'Installed JREs' must be a specified JDK configured.
Next, open the general preferences 'Java' -> 'Build Path' -> 'classpath Variables' and look is there the jdk instance mentioned. If not, open dthe control settings from windows and add the variable 'Java_Home'.
Related
I'm trying to follow a guide on installing specific report designer tool according to report development guide
I already finished most part, but just 1 thing doesn't succeed.
According to page 18 I need to change the target to
C:\birt371\eclipse\eclipse.exe -vm “C:\Program Files\IBM\Java60\jre\bin\java.exe” –vmargs –Xmx512m
but because my jre is installed in
C:\Program Files\Java\jre1.8.0_71\bin\java.exe
I changed it to
C:\birt371\eclipse\eclipse.exe -vm “C:\Program Files\Java\jre1.8.0_71\bin\java.exe” –vmargs –Xmx512m
This gives me an 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 "C:\Program
If I leave out the target
-vm “C:\Program Files\Java\jre1.8.0_71\bin\java.exe” –vmargs –Xmx512m
so my target becomes
C:\birt371\eclipse\eclipse.exe
Eclipse starts up normally, no errors.
The problem:
I can't import my reports and I'm wondering if this last peace of configuration has something to do with it.
The question:
How can I use the configuration required?
Notes:
With the previous java versions there wasn't a security in java (control panel), could my problem have something to do with that?
The -vm argument forces a specific Java installation on your machine to be used. Especially useful if you have multiple Java's installed, or Eclipse cannot find Java.
If you have only one Java installed and Eclipse finds it ok, you can simply launch without the -vm argument.
From the Eclipse help for -vm:
The location of Java Runtime Environment (JRE) to use to run the
Eclipse platform. If not specified, the launcher will attempt to find
a JRE. It will first look for a directory called jre as a sibling of
the Eclipse executable, and then look on the operating system path.
Relative paths are interpreted relative to the directory that eclipse
was started from.
If you do need to get -vm working, the recommended way is by editing eclipse.ini and putting -vm on one line and the full path to the vm on the next line. See the eclipse.ini entry on the Eclipse Wiki.
I am not able to start eclipse on Windows 7. It was working fine yesterday. Here is the screenshot of error when I start eclipse:
Java versions from CMD
Why it gives different versions for java and javac?
My java home is set to Jdk 7 as below:
JAVA_HOME = C:\Program Files\Java\jdk1.7.0_60
Note: I have jdk 8 installed on my machine but I have not set jdk 8 path.
This question has been asked couple of times but I am not able to resolve it on my machine so please do not mark it as duplicate.
In the environment variables check your path whether it is starts with C:\ProgramData\Oracle\Java\javapath
if yes then please remove it and try again
More than likely you've installed JDK 1.70_60 prior to installing JRE 1.8.0_51.
This would mean that your compiler javac is found within the JDK distribution (Java Development Kit) and your java runtime is found within the more recently downloaded JRE (Java Runtime Environment). JRE does not contain the javac (Java compiler).
I was recently facing the same issue, Java 8 installer prepends to the Windows PATH variable C:\ProgramData\Oracle\Java\javapath that is why you are seeing different versions for java and javac
Your eclipse might not be pointing to the right JDK.
Open your eclipse.ini configuration file for editing. This can be found in the same folder with eclipse.exe file.
replace:
-vm C:\ProgramData\Oracle\Java\javapath\javaw.exe
with:
-vm
C:/Program Files/Java/jdk1.7.0_60/bin/javaw.exe
Then, restart eclipse.
I have recently installed jdk 8. Java 8 installer prepends to the Windows PATH variable C:\ProgramData\Oracle\Java\javapath and this is the reason I was seeing different versions for java and javac
For those who runs on the same issues, I have found nice explanation here
I just downloaded Eclipse, and it said "Version 1.7 or greater is required" for Java. Then I downloaded Java 1.7 and installed it and all that, and even restarted my computer. When I check my Java version in the terminal, it says Java 1.7, so why can't Eclipse recognize Java 1.7?
Thanks a lot! :)
My question isn't a duplicate of Running Eclipse on Mac - JVM Version 1.7 or greater is required because I installed the entire JDK 7 and my computer recognizes Java 1.7. Right now, I can't even open Eclipse.
EDIT:
current steps I have taken:
1) finding the path (/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home) to java 1.7 with command "/usr/libexec/java_home -v 1.7"
2) pasting this path by adding the following in the eclipse.ini file,
-vm
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home
Error message is still:
Version 1.6.0_65 of the JVM is not suitable for this product. Version: 1.7 or greater is required.
I am sure you must have done this but just in case you haven't can you make sure the environment variable's are set for Java
Have you tried Window -> Preferences -> Java -> Installed JREs?
There you can add (Using the Standard VM option) a JDK (or JRE) by setting the path to the JDK install directory.
right click on
project --> properties --> java compiler
and see the jdk compiler compliance level option set to 1.7 compiler, if not change it to 1.7 or higher
EDIT :-
eclipse by default will take java installation path from %JAVA_HOME% variable, firstly you check whether you have set JAVA_HOME path in your machine.
or you can manually set java path in eclipse.ini file as said in this post
How do I set the Java path in Eclipse so I can run it on an external drive?
and
How to specify jdk path in eclipse.ini on windows 8 when path contains space
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.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Eclipse - no Java (JRE) / (JDK) … no virtual machine
I installed the Android SDK and it mentioned that I should download eclipse as well, but when I download and try to run the eclipse.exe, I recieve a message stating "A Java Runtime Environment or Java development kit must be available in order to run eclipse....". I do have JDK, which is the only way the Android SDK would have been installed. Any suggestions?
Set your computer's PATH (environmental variable) to the bin folder of your JDK. Here's how:
Windows 7-Start->Control Panel->System and Security->System->Advanced system settings(panel on the left)->Advanced->Environmental Variables(bottom). Under System Variables find PATH. Select it and hit edit. Point it to the bin of the jdk. If that doesn't work try adding a JAVA_HOME variable to the User variables ( hit new than enter JAVA_HOME for name and the value is the bin folder again). Hopefully that should do it. I feel your pain the same thing happened to me when I first started.