My question is similar to this. I am trying to work with Java in Remote-WSL using VSCode. According to VSCode guidelines, I should install the Java Extension Pack on WSL. However, when I try to install it I get the following error:
The java.home variable defined in Visual Studio Code settings points to a missing or inaccessible folder (C:\Program Files\Java\jdk-9.0.1)
This is what the Java Extension pack shows when I install it on WSL.
I have been able to resolve this issue if I change the path in java.home to be same as JAVA_HOME in settings.json. However, I need to toggle the path back to C:\Program Files\Java\jdk-9.0.1 manually when working on my local machine and not on Remote-WSL.
Is there a better way to make it work?
PS: I've no clue why it says that JDK_HOME is empty. If I echo $JDK_HOME inside WSL, it shows the path same as JAVA_HOME.
If you want to develop Java in WSL, you need to install JDK in WSL. Now from the way you frame your questions I would assume you have done that (it needs to be installed as a Linux program, so if your JAVA_HOME starts with anything like /mnt/c then you don't actually have it on WSL).
I have been able to resolve this issue if I change the path in java.home to be same as JAVA_HOME in settings.json. However, I need to toggle the path back to C:\Program Files\Java\jdk-9.0.1 manually when working on my local machine and not on Remote-WSL.
The problem you mentioned here is relatively simple to solve. All you need to do is to have a WSL specific settings for java.home, and have the normal setting (i.e. C:\Program Files\Java\jdk-9.0.1) remain in your normal VS Code settings. To access WSL specific settings, use CTRL+SHIFT+P then type "Open Remote Settings".
Copied answer to one possible problem/solution from the Q above for visibility here:
I have been able to resolve this issue if I change the path in java.home to be same as JAVA_HOME in settings.json. However, I need to toggle the path back to C:\Program Files\Java\jdk-9.0.1 manually when working on my local machine and not on Remote-WSL.
Before installing the Java Extension Pack on the WSL side of things you should have something similar to this (so, yeah --> Click that button!):
i solved my problem running this comand on WSL
sudo apt install default-jdk
I think you should install JDK in WSL.
I am trying to install tizen wearable sdk in windows 7 64bit. I have donwload the .exe however when I am trying to isntall it I am getting the following error:
error - Cannot execute Java even if it was installed. Check environment variable or Java version(over 1.6) please.
I have installed in my computer java 1.7.0_80. I have put to the path of the system C:\Program Files\Java\jre7\bin and in JAVA_HOME C:\Program Files\Java\jdk1.7.0_80
I have tried to follow the instructions from here here however I didn't mange to solve my issues.
EDIT: I followed the instructions from that link I went to cd\Users\AppData\Local\Temp and I run from there the command in console java -jar installmanager.jar. THe installation began normally. However, during the installation I got several errors.
I've had a few problems with the Tizen Wearable install too.
You can either make sure that you have Java in your path by going to a command prompt and typing java -version for example. If it works then Java is in your path. If it doesn't you have to fix it:
Win+Pause/SysRq then click on Advanced System Settings
Click on environment variables
Look for PATH and edit it
Add the path to your Java install (eg: C:\Program Files (x86)\Java\jre1.8.0_31)
Or run from the command line:
Go to a command line
cd to %TEMP%
Run Java by first entering the path to your java version (eg C:\Program Files (x86)\Java\jre1.8.0_31) then bin\java, so C:\Program Files (x86)\Java\jre1.8.0_31\bin\java.exe
If you are still having problems then edit the question to add more specific information so any other issues can be fixed.
Try to check if this directory is in the path too:
C:\ProgramData\Oracle\Java\javapath
and if there is links to missing java executables.
If this is the case, you can remove that folder to the path, replacing with the current java version you want, or fix the link from there.
It seems like the VBS script tried to delete a file that doesn't exist, you can go to the VBS file and go to the problem line, and check out which file was missing. Then decide what to do.
Maybe you should install the latest JDK, try the latest JDK and see if the problem can be solved.
I'm having issues trying to boot-up Android Studio
When I try to launch it after installation I'm getting this error:
No JVM Installation found. Please install a 64 bit JDK.
My current system specification:
Operating System: Windows 8.0 64 bit version
JDK installed: JDK 1.8.0
What I have tried:
I have tried what was reported in the error, and also in most of the solutions to set the JDK_HOME variable in environment variables to my JDK path (64 bit version) i.e. C:\Program Files\Java\jdk1.8.0_05
*I also have tried rebooting system, just in case to test if the environment variable is not working without a restart
I have seen these solutions and tried but none of them works, so don't mark it as a duplicate of any of these:
Android Studio installation on Windows 7 fails, no JDK found
With android studio no jvm found, JAVA_HOME has been set
Android Studio start fails on Windows 8 64bit
Android Studio does not launch after installation
Here is the cmd output for java version:
I had the same problem. I tried setting all kind of paths but nothing worked. So I had to do some dirty fix. The only problem with this is that it opens a blank command line window.
I did the following to make it work.
goto the AndroidStudio installation folder.
goto bin folder and open studio.bat in text editor
add set JAVA_HOME=C:\Program Files\Java2\jdk1.8.0//your java path after the ECHO line.
goto Start -> All Programmes -> Android Studio ->
right click on Android Studio and click on properties.
You will see the Target something like <installation path>android-studio\bin\studio64.exe
change it to <installation path>android-studio\bin\studio.bat
Now you can access it by clicking it from the menu.
Note : I tried it with 8, It works.
I reproduced your issue on my Windows 8.1 system :
Installed 64-bit JDK 1.8.0_11.
Installed latest Android Studio Bundle.
Went to Control Panel -> System -> Advanced system settings -> Environment Variables...
Added JDK_HOME pointing to my 64-bit JDK.
Launched studio64.exe
I got the same message you did. Thinking that it might be the environment variable, I did the following :
Went to Control Panel -> System -> Advanced system settings -> Environment Variables...
Changed the name of JDK_HOME to JAVA_HOME.
Launched studio64.exe
It came up successfully !
1 .Download 64 bit version of JDK from here
As shown in next picture, go to Control Panel -> System and Security -> Advanced system settings -> Environment Variables -> New (System variables)
Then add variable name: JAVA_HOME and variable value: C:\Program Files\Java\jdk1.8.0_25
Please note that jdk1.8.0_25 may be vary depending on JDK version.
Click OK button on the rest of the windows left.
1-Right click on Android Studio and click on properties.
2-Replace studio64.exe in link by studio.exe.
Ok, was having this issue as well and this is what fixed it for me. For the record I'm using Windows 8.1 and Java JDK 1.8.31, all 64-bit.
The problem is with the space between "Program" and "Files" in the path set in JAVA_HOME. I've had this problem before but didn't really realize until I was checking the instructions here for setting JAVA HOME, then it all made sense.
In a nutshell, change the JAVA_HOME path from:
C:\Program Files\Java\jdk1.8.0_31
to
C:\Progra~1\Java\jdk1.8.0_31
Make sure to set the correct JDK version number for your installation. Removing the space from the path fixed everything on my system.
As noted on the page linked above,
use C:\Progra~1\ for C:\Program Files\
and C:\Progra~2\ for C:\Program Files(x86)\
depending on where you have the JDK installed on your system.
Note: Just to be clear, before making this change my system correctly echoed the value of JAVA_HOME to be C:\Program Files\Java\jdk1.8.0_31 in the command window, leading me to believe all was well. However, attempting to run %JAVA_HOME%\bin\javac reported that the path could not be found. After removing the space from the JAVA_HOME path the same command runs perfectly.
Uninstall Java 8 and clean your JDK_HOME and your JAVA_HOME enviromental paths. Then install 64bit JAVA 6 or 7 JDK of your preference.
Make sure you set the path in the SYSTEM VARIABLES not in the USER VARIABLES also.....name the variable name as JAVA_HOME and the address as C:\Program Files\Java\jdk1.8.0_25\ be sure that you didn't place any semicolon.
According to Oracle's installation notes, you should download/install JDK for the correct system. For your convenience, I have linked to it from the sentence above. If you still encounter problems, leave a comment. I have written some quick code that will tell you if your JVM is 64 or 32-bit, below. I'd suggest you run this class and leave a comment as to its output:
public class CheckMemoryMode {
public static void main(String[] args) {
System.err.println(System.getProperty("sun.arch.data.model"));
}
}
For me this turns out to be Environment Variables not being inherited.
Quick answer: reboot, than click on studio.bat, not studio.exe or studio64.exe
================ Details =================
"Right Click"-"Run as Administrator" works for me if:
** JDK_HOME or JAVA_HOME was set. (PATH didn't need to be changed for me)
** I run studio.bat, not studio.exe
** Note: By Default I am an administrator on a Microsoft Account (That Microsoft part may be affecting things), and I seldom reboot. I'm running Win8.1 64bit. I installed both JDKv1.8.0.0_25 32bit and 64 bit, and had JRE 32bit and 64 bit already installed (used by other software).
I found there was a difference in clicking on studio.bat, studio.exe, and running studio.bat from a command prompt. There is also a difference if I rebooted or not.
The difference: The System Environment Variables aren't all there depending on how I start the program.
To test:
In start menu drag a copy of "command prompt" to your desktop, then change properties so "Start In" is location of studio.bat
copy studio.bat to studio_debug.bat (one we can mess with)
drag a shortcut of studio_debug.bat to desktop for convenience.
edit studio_debug.bat (right click --> edit)
== Change:
#echo off
== to
#echo on
echo Set===================
set
echo ======================
pause
This may also help in debugging studio.bat:
== change:
"%JAVA_EXE%" %ALL_JVM_ARGS% -cp "%CLASS_PATH%" %MAIN_CLASS_NAME% %*
== to
echo =================
echo Starting: "%JAVA_EXE%" %ALL_JVM_ARGS% -cp "%CLASS_PATH%" %MAIN_CLASS_NAME% %*
pause
"%JAVA_EXE%" %ALL_JVM_ARGS% -cp "%CLASS_PATH%" %MAIN_CLASS_NAME% %*
echo =================
Now when you run studio.bat from command prompt versus double clicking you may see difference in environment variables including JAVA_HOME and PATH. If you do you have same problem as me.
The problem seems to depend on:
did you reboot since changing environment variables?
didn't seem to matter if I was local or microsoft account
may depend whether you are an administrator or other account type
whether you start using studio.bat, studio.exe, or studio64.exe
.
FYI: The actual successful startup command executed by studio.bat on my system was as follows (includes studio64.exe):
"C:\Program Files\Java\jdk1.8.0_25\bin\java.exe" "-Xms128m" "-Xmx750m" "-XX:MaxPermSize=350m" "-XX:ReservedCodeCacheSize=96m" "-ea" "-Dsun.io.useCanonCaches=false" "-Djava.net.preferIPv4Stack=true" "-Djsse.enableSNIExtension=false" "-XX:+UseCodeCacheFlushing" "-XX:+UseConcMarkSweepGC" "-XX:SoftRefLRUPolicyMSPerMB=50" "-XX:+HeapDumpOnOutOfMemoryError" "-Didea.platform.prefix=AndroidStudio" "-Didea.paths.selector=AndroidStudioBeta" -Djb.vmOptionsFile="C:\android-studio\bin\studio64.exe.vmoptions" "-Xbootclasspath/a:C:\android-studio\bin\../lib/boot.jar" -Didea.paths.selector=AndroidStudioBeta -Didea.platform.prefix=AndroidStudio -cp "C:\android-studio\bin\..\lib\bootstrap.jar;C:\android-studio\bin\..\lib\extensions.jar;C:\android-studio\bin\..\lib\util.jar;C:\android-studio\bin\..\lib\jdom.jar;C:\android-studio\bin\..\lib\log4j.jar;C:\android-studio\bin\..\lib\trove4j.jar;C:\android-studio\bin\..\lib\jna.jar;C:\Program Files\Java\jdk1.8.0_25\lib\tools.jar" com.intellij.idea.Main
Hope that helps someone else.
Just make sure that the installed version of both, Android Studio and JDK, are of either 32-bit or 64-bit. If JDK is of 32-bit and Android Studio of 64-bit or vice-verse, then it won't work though you set up JAVA_HOME.
My fix was to remove the double quotes that I had enclosed the JAVA_HOME path in.
Instead of declaring JAVA_HOME as "C\Program Files..."
I removed the " and declared JAVA_HOME as C\Program Files...
I am on Win 7, x64
I also faced the same issue. The solution which helped me was I downloaded and installed 64 bit JDK from this link and set the "java_home" variable to the new JDK installed path like C:\Program Files\Java\jdk1.7.0_45. Hope this helps.
Had the same problem after upgrading my machine from 7 to 10 had to reinstall the JDK all overgain and took me only a few seconds.
Here are the steps I followed.
Go to this link
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Agree to oracle contact agreement.Then pick your windows version in my case is 64 bit after that its ..Next..Next,,once compete you can relaunch your Android studio without any problem. Hope this helps
Here comes the solution.
Just start ANDROID STUDIO as administrator if you are using a non administrator windows profile!
If your environment variables are correct that will do the trick. Enjoy!
Android Studio Works Perfectly fine with Java 1.8 or Java 8. I was also having invalid JVM error. The reason was including ";" (semicolon) at the end of JAVA_HOME path value. The correct format for path value is:
C:\Program Files\Java\jdk1.8.0_xx (Replace xx with your current version)
Do not include ; (semicolon) at the end of JAVA_HOME value
In my case
In Control Panel -> System -> Advanced system settings -> Environment Variables there is no JDK_HOME OR JAVA_HOME
SO
I added an entry named: JDK_HOME pointing to: C:\Program Files\Java\jdk1.8.0_25\ (you have to point this to your JDK instalation path)
And all seems to work fine now
You must just install jdk1.8.0 and then right click on my computer icon and then select properties,then in left panel, select advanced system settings, then in dialog bog select Environment Variables, then in that's dialog box,in section user variables create new variable that's name must be JAVA_HOME and path is C:\Program Files\Java\jdk1.8.0(in my pc) then sytem variable section, select PATH variable and append it's end this path C:\Program Files\Java\jdk1.8.0\bin and then select ok for all dialog box and after this steps run Android studio. And for test, run cmd in windows and run this command java -version if returned a java version and ... it is installed correctly.
Note: I get answer in windows 8.1 64 bit.
This is tested on my Windows 7 64Bit machine.
Quite strange... I had the same issue - WHILE IntelliJ Idea (including the Android Plug-in) was working perfectly.
However, here is what I did to get Android Studio 1.0 working (no step missing -> maybe it will help programming beginners).
Just set up a new environment variable by...
pressing Windows-Key and typing env... you'll see "Edit the system environment variables". Click!
Now click "Environment Variables..."
Under System variables (NOT "User variables") add a new entry named JAVA_HOME and set the value to your Java folder (like C:\Program Files\Java\jdk1.8.0_25)
apply and you are good to go.
PS: I don't know why some people writing about nuclear science when they want to explain how to set the Java path..
The solution is given in the error itself, Goto My computer(Right click)-->properties-->Advanced system settings-->Environment variables-->Create new variable.
Give the following details to it:
Variable name : JAVA_HOME.
Variable value : (your path to java jdk installation folder).
To find the path for java installation, go to program files in your window installation drive (normally C drive). Find folder named JAVA, in that navigate to JDK folder.
Copy the link address from the top, and paste it in the Variable value .
Now Press Ok and once environment variable gets created restart the android studio.
Hope it helps.
if your "enviornment variables" set well, than try to update
Start > All Programs > Android Studio > Android Studio
do right click, click Properties and set android studio sdk path
in
shortcut > Target
If you are using windows 7, make sure you install jdk-xxxx-windows-x64.exe.
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
I had previously installed 32 bit instead of 64 bit version hence it was installed in program files x(86) folder. But if you install 64 bit sdk setup, its installed in program files folder.
Then set the JAVA_HOME='C:\Program Files\Java\jdk1.8.0_65'
It should work fine.
My variables pointed to other system variables so JDK_HOME was
%programfiles%\Java\jdk1.8.0_45
and i had to explicitly change it to
C:\Program Files\Java\jdk1.8.0_45
Similar for JAVA_HOME
My JAVA_HOME was pointing to c:/jre directly. So I changed it to C:/java/jre because it was confused to pick up which one to use, so I changed it to the specific one and it works for me. Note: It is better to have only one JRE install on your machine
I solved the problem in my case by deleting file
C:\Users\username.AndroidStudioX\studio64.exe.vmoptions
( x denotes the version of your android studio so it can be different ) , because I created it before to customize VM options.
It's that simple
Add the your installation path and java path to the default system path by separating the ;
Right click on My Computer-->Properties-->Advances System Setting-->Advanced -->Environment Variables-->Under System Variables category find the "Path"-->add the android installation path and java path by separating with ;...
Believe it works
If it does not work after setting paths in environment variables correctly,
Reinstall Android Studio and it worked for me.
Under my Android Studio\bin there are two folder
studio.exe and studio64.exe
I tried to run the first program and it gives me the mentioned error.
But when running studio64.exe it works.
If setting JAVA_HOME not works, install Visual Studio C++, you can download "all versions in one" installer here: https://www.techpowerup.com/download/visual-c-redistributable-runtime-package-all-in-one/
I think Android does not support Java 8. Officially android need java 6 as mentioned at the below:
https://developer.android.com/sdk/installing/installing-adt.html
Here I'm providing you a good link, hope those will clear this question :
Is it possible to use Java 8 for Android development?
For crying out loud this is so VERY EASY TO Fix!!
Go to : "Control Panel\All Control Panel Items\System" once there click on "Advanced system settings" on the left hand side
The window that pops shows a box that says says Environment Variables! Click it.
Click "add new" to add new variable.
Type JAVA_HOME in the first box and in the second box the address to, IE / in my case C:\Program Files\Java\jdk1.8.0_25 save it. exit everything. THATS IT!!
Enjoy Android Studio!
Obviously for the above to work you have to install java first or how else can you use it or point to it on your pc and all that. The above instructions are amazingly mislead and complicated. For the record I am on widows 8.1, YES it works on latest windows and is ridiculously simple to fix.
-OSG
I installed eclipse and netbeans on mac osx 10.6
I installed android sdk and everything was working perfectly.
Now I installed mac ports
and installed ImageMagick using macports
Now after restarting the system neither netbeans work nor eclipse.
Net beans closes without any error. and eclipse give following error :
A JDK or JRE must be installed in
order to run eclipse No java virtual
machine is found after searching the
following location:
/Users....../eclipse.app
ContentsMacOS/jre/bin/java java in you
current PATH
I thought the problem might be with the path.
So I tried running java and javac from terminal. But these two commands run properly.
note: I don't have javaw (I am not sure whether we have this file in mac or not.
Can I know what can be the problem and how can I fix it ?
In the Eclipse.app/Contents/MacOS/eclipse.ini file put
-vm
/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/bin/java
right before
-vmargs
should help, I hope ... I hope
Check your Eclipse directory -- and look in eclipse.ini for this line:
-vm
<path to java.exe - e.g. C:/Program Files (x86)/Java/jdk1.6.0_18/bin/javaw.exe>
You're probably missing that
For newer versions: Mac OS X El Capitan Version 10.11.6 path to current Java version is:
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
For Eclipse Neon.1 open the eclipse.ini file from
Eclipse.app/Contents/Eclipse/eclipse.ini
and update the vm argument to:
-vm
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
just before
-vmargs
For me updating the eclipse.ini with -vm did not help. Rather, I had to update Eclipse.app/Contents/info.plist with below content(replace $Actual Java location$ with location of java:
<string>-vm</string><string>*$Actual Java location$*</string>
For windows 7 - 64 bit users ( may work for others too )
you may do the following
1. If the java Runtime is NOT already installed, (Note it does not get installed along with Android SDK, you need to download it separately ). You can download from here http://www.oracle.com/technetwork/java/javase/downloads/index.html (select 'Java Platform (JDK) 7u21' out of the three option the first button :) )
after install you will find javaw.exe in " C:\Program Files (x86)\Java\jre6\bin"
2. set the environment variable the steps as below
a) Right click Computer, select properties, select 'advance system setting'
b) Under Advanced tab select the last button 'Environment Variable'
c) Under System settings in the window that comes next search for 'Path'
d) select 'Path' click edit
e) Add the '; C:\Program Files (x86)\Java\jre6\bin' (this path or which ever path its installed in your machine, semi colon is used to separate other pre-existing path variables, and no need of quote ;) )
Thats all !! Now try running Eclipse.exe ( note : if you have added the entry in eclipse.ini as suggested by some ..please remove it else it will throw another exception)
Remember no need to change the eclipse.ini
It works Just double click the eclipse.exe :)
OK. So I did add
`-vm
/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/bin/java`
to eclipse.ini file but it was always overwritten when I restarted the Eclipse.
So, the thing I have done is:
I've created the folder structure mkdir -p jre/Contents/Home/jre/bin/ in main eclipse folder
Changed dir to: cd jre/Contents/Home/jre/bin/
Made symlink to $JAVA_HOME/bin/java folder: ln -s /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/bin/java
And after that Eclipse works every time!
Hope this helps :)
In eclipse Go to Windows --> Preferences --> Java --> Installed JRE's and see whether any JRE in mentioned there.
Caveat: I don't know anything about the Mac, so YMMV.
Check your JAVAHOME environment variable. On most systems, that is how the JRE broadcasts its location to apps that want to run under the current JRE.
Download the offline executable file on Java.com and make sure that if your system is 32-bit or 64-bit you should download the one that is appropriate with your system. After installing Java try running eclipse and it should run.
Go to "environment variables" from "advance system settings".
Add JAVA_HOME variable (both user and system variables) and value= "path of jre" example: "C:\Program Files\Java\JDK_1.8\jre\bin".
Add jre path to "Path" variable "...; C:\Program Files\Java\JDK_1.8\jre\bin".
Then it works..
If still there is a problem, copy jre directory to path where Eclipse IDE Application works.
Launching eclipse via terminal worked for me. Try that.
#all thanks a lot.
It some or how works after two restarts don no why..
Thanks and sorry for the trouble