JAVA_HOME is not set currently. Please set JAVA_HOME. I want to run appium programs but its throwing this weird error
Even java_home path not displaying in terminal. Currently displaying blank
My bash profile
JAVA VERSION Is also getting displayed
try the following command:
vim .bash_profile (do you see export JAVA_HOME=$(/usr/libexec/java_home) under the file) ?
If not then you need to add it there.
If already added then run source .bash_profile, it reloads the file. And the path is set.
The first bash line is incorrect.
export JAVA_HOME=$(/usr/libexec/java_home)
Should be:
export JAVA_HOME=/usr/libexec/java_home
the problem is that I upgraded to Windows 10 and now I'm installing my tools to programming and now that I installed the JDK 7 of Java, when I try to use in the cmd the command:
- "javac"
The result of this is: "javac" is not recognized as an internal or external command...
But I was edited the PATH with the correct link of jdk, because when I use "java", it is ok.
Now, I tried in the console with this command: PATH=%PATH%;"C:\Program Files\Java\jdk1.7.0_79\bin"
And when I executed the command "javac" it works, but now, when I open other console, it doesn't work, or when I restart the console, this command is not recognized.
What could be the problem?
java is part of the JRE, not the JDK.
You need to add the JDK bin to the system PATH, in
"Control Panel" | System | Advanced | "Environment Variables"
Her's how I configure System variable on Windows 10 :
I am totally new to java and spent hours trying to get the problems with PATH and CLASSPATH worked out. There was one person who said to restart the command prompt after you modify the environment variables; that was it for me. While you are testing different configurations, make sure to relaunch the command prompt before testing. It seems like there are at least 2 different ways of setting this up. I went with the following:
1) In System Variables, add
JAVA_HOME = c:\program files (x86)\java\jdk1.8.0_121
2) In System Variables, add the following to existing Path...
%JAVA_HOME%\bin
That's it.
No need for quotes around anything. No double forward slashes or anything else. I think it would also work if I removed the java_home variable and just listed the explicit path to bin in the PATH variable, but I'm not touching it again now that it finally works.
After adding C:\Program Files\Java\jdk1.8.0_73\bin to the system variables I turned off my command prompt and opened another one. Then it worked.
Maybe a bit late, but i had same problem.
Click on "Move up" button for Java path and move it at top.
It fixed problem for me
just add C:\Program Files\Java\jdk1.7.0_80\bin as the path in environmental variables. no need to add java.exe and javac.exe to that path. IT WORKS
I added below Path in environment variable
;%JAVA_HOME%/bin instead of %JAVA_HOME%\bin
in my case , it fix the problem
I had the same issue on Windows 10 - the java -version command was working but javac -version was not. There are three things I did:
(1) I downloaded the latest jdk (not the jre) and installed it. Then, I added the jdk/bin path tan o environment variable. In my case, it was C:\Program Files\Java\jdk-10\bin. I did not need to add the ; for Windows 10.
(2) Move this path to the top of all the other paths.
(3) Delete any other Java paths that might exist.
Test the java -version and javac -version commands again. Voila!
For some reason it worked for me to add quotation marks to the path folder on windows 10. not C:\Program Files\Java\jdk 1.8.0_111\bin, but "C:\Program Files\Java\jdk 1.8.0_111\bin".
now i got it finally! make sure that there are no spaces before and after the path and put the semi-colon on both sides without spaces
The PATH is for current user, instead you can add a CLASSPATH and below link would help you more PATH and CLASSPATH
I added below Path in environment variable
C:\Program Files\Java\jdk1.8.0_91\bin
and then compiled the program but got the error then I restarted the system and again compiled the program
This time it worked :)
Add java path to environment variables and move it to the top of all the paths available there. It worked for me.
To be sure about your path, you can use double quotes " to locate the path or if you are in Windows, you can browse to path to select "C:\Program Files\Java\jdk1.8.0_121\bin" folder.
in the search window type 'environment variables' this should give you a link to editing the variables. On the variables editing page there is an upper section and a lower section in the lower section add NEW,type path C:\Program Files\Java\jdk-10\bin this worked great for me and it finds the compiler all the time.
Kind of beating a dead horse now but, I want to clarify one thing that may not be quite so obvious. Yes indeed you need to edit the PATH environment variable as already stated many times. The key for me was to edit the PATH under SYSTEM variables. I had inadvertently edited the PATH under USER variables. Why did this matter? On my machine I have to log in as an Administrator to edit environment variables. So editing the User variables was not helping because I run the command prompt under my login (non-admin) account. Grrr!
Also, I found that closing the command prompt window, and re-opening it after the PATH variable update was required. Changing the order of the values, adding semi-colons, etc. didn't make a difference for me.
Cheers
If you have set all PATH variables correctly after installation, just restart it.
I had the same problem, I had also installed new Windows7 OS then I upgraded it to Win 10. Then i started setup necessary tools like IntelliJ, Java jdk,jre, eclipse so on.
In cmd, java -version worked but javac compiler got unrecognized. I checked and all good, the files in the folders, path are correct and so on.
I restarted and checked it again in cmd ,it worked.
what I did is:
I typed ; accidentally in front in the path variable and then hit OK, after this if I again edit it was nowhere going to the same page as earlier, it opened a new page as defined for user variables and then I was able to remove double quotes in front of the PATH VARIABLE.
Everything worked fine then. :)
Did it just now.
Add
PATH = C:\Program Files\Java\jdk1.8.0_66\bin
in Advanced system setting. Then Choose Environment Variable.
for windows 10 Users Use Java path( JDK Bin location) AS "C:\Program Files\Java\jdk-9.0.1\bin" it will work.
Points to remember, do as the image shows. Move the highlighted bar up using move up button, this will help.
I followed this thread to solve my problem, I have the same problem with a different version of JDK and for some reason it didn't work. I still get -bash: JAVA_HOME: command not found when I type JAVA_HOME to my terminal.
I have JDK1.8.0.45 located at Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home which I can access with /usr/libexec/java_home
Using
echo "export JAVA_HOME=/usr/libexec/java_home" >> ~/.profile
~/.profile
I do get
"export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home"
saved to ~/.profile, and I can check this using /usr/bin/open ~/.profile
But I do not understand why JAVA_HOME still doesn't work and I need this to install maven.
Thanks!
My ~/.bash_profile has this line in it, and it's been working fine.
export JAVA_HOME=$(/usr/libexec/java_home)
This line basically says "run the program named /usr/libexec/java_home and export its output as a variable named JAVA_HOME."
I suggest opening your .profile or .bash_profile in a text editor rather than using echo statements to append new lines to it. That way you can see everything that's in the file and make sure other old lines in the file aren't causing you issues.
After you make a change to .bash_profile, make sure you open a new terminal window before testing it.
You can check the value of any environment variable (including JAVA_HOME) by simply echo'ing its value:
echo $JAVA_HOME
In my case the output of that echo command is:
/Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home
Probably you misunderstood things. JAVA_HOME is not a command, it's an environment variable. You can't call JAVA_HOME in your terminal since - in fact - there is no such command, what your error message says.
You can see this variable's value by:
echo $JAVA_HOME
If it is set and points to a proper location then it's fine. Some tools that expect this variable to be set (e.g. Maven or Java IDEs) will work well.
Found the solution!
Ubuntu by default ignore the command "RD_LIBRARY_PATH" therefore I need to add those codes in ".bashrc" instead of "/etc/environment" or .profile.
it now work perfectly fine!
I am trying to run a program that reads Java method from C/C++ code. (I made it on Windows successfully, now, I am working on Linux)
I made it successfully compiled and run on Ubuntu, however, the problem is..
Whenever I try to run the program, I have to type following commands on terminal..
source /etc/environment
./invoke #program name is invoke
If I do not type "source /etc/environment" every time I boot my PC, the error message I get is...
error while loading shared libraries: libjvm.so: cannot open shared object file: No such file or directory
Ok. Here is what I added in /etc/environment
export PATH="$PATH:/usr/lib/jvm/jdk1.7.0_25_x64/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_25_x64
export LD_LIBRARY_PATH=$JAVA_HOME/jre/lib/amd64:$JAVA_HOME/jre/lib/amd64/server
What I want is that, as you know, I want to run the program without typing "source /etc/environment".
I also tried typing those PATHs on /etc/profile, but result was same... I should type "source /etc/profile" every time I reboot my PC..
How to make it permanently applied to whole range of System without typing "source /etc/environment" stuffs everytime I boot?
if you need to see source code of the program, here is downloadable address:
http://cfile237.uf.daum.net/attach/247819495212DF1C07B9EB
This worked for me:
For x86:
export LD_LIBRARY_PATH=/usr/lib/jvm/default-java/jre/lib/i386:/usr/lib/jvm/default-java/jre/lib/i386/server
For x86_64
export LD_LIBRARY_PATH=/usr/lib/jvm/default-java/jre/lib/amd64:/usr/lib/jvm/default-java/jre/lib/amd64/server
I had the same problem of setting the path(permanently) however I was using Red Hat, If you look change PATH permanently on Ubuntu it might help you. There was a file on Red Hat .profile that once you add your exports statements, they will get loaded when the computer starts. :) There should be the kind of file for ubuntu
export PATH="$PATH:/usr/lib/jvm/jdk1.7.0_25_x64/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_25_x64
Put "-Djava.library.path=FULL_PATH_HERE/jre/lib/amd64" as a JVM option in your C code.
Edit the full_path_here part.
The path is allowed to be relative, but I don't think you can use $JAVA_HOME as a placeholder for the environment variable.
Found the solution!
Ubuntu by default ignore the command "RD_LIBRARY_PATH" therefore I need to add those codes in ".bashrc" instead of "/etc/environment" or .profile.
it now work perfectly fine!
add the path of the missing libraries in the file /etc/ld.so.conf
execute the following command: ldconfig
this way, you'll add the new libraries to the default ones.
To check whether the new libraries have been linked,
execute the following command: ldconfig -p
to have the list of libraries currently linked by default.
Im building some application, where i would like to get some variable directly from linux.
I know, that the command to get the variable is System.getenv(), but i don't exackly know where i should set variable in linux.
I'm using Centos, and my tomcat is set in /usr/share/tomcat6
I was thinking, that maybe i should write it in /etc/profile file, but it doesn't works, and additionally i think that i should past the variable in user folder. User for Tomcat is tomcat, and his folder is /usr/share/tomcat6.
Should i create there file profile and add something like this? :
MY_VARIABLE=value
export MY_VARIABLE
Please help
From Terminal:
gedit ~/.bashrc
~ here refers to /home/USER directory.
Edit the file:
MY_VARIABLE=value
export MY_VARIABLE
confirm changes:
echo $MY_VARIABLE