I need to debug my app, but debugging does not work.There is a message in event log:
System Health
This IDE is running on a Java JRE instead of a full Java JDK.
This does not work; debugging (among other features) will not work.
You must configure the boot JDK (via Help > Find Action... > Switch
My JDK home path in Android Studio is C:\Program Files\Java\jdk1.7.0_79.
I have JAVA_HOME variable: C:\Program Files\Java\jre1.8.0_111.I tried to change JAVA_HOME variable to C:\Program Files\Java\jdk1.7.0_79,but Android Studio did not start.
What should I do?
I ran into the exact same message with Android Studio 2.3.2.
I had installed Java SDK 7, and then accepted an update to Java 8.
After much ado following advises about setting environment variables JAVA_HOME, JDK_HOME, STUDIO_JDK and PATH in dozens of different combinations, I finally found out what at least my problem was and it's very simple indeed.
Turns out, the update to Java 8 was only for the JRE so the SDK was still 7, and Studio 2.3.2 requires JDK 8. So after installing that, not one single environment variable was necessary to get rid of the "This IDE is running on a Java JRE instead of" message.
Hope this helps.
/z
Related
System Configuration:
OS - Windows 8
System type - 64-bit Operating System , x64-based processor
I have installed java-8 and set JAVA_HOME as
C:\Program Files\Java\jdk1.8.0
I am getting error as below image while Tizen-sdk-for-wearable-setup Installation.
error - Cannot execute Java even if it was installed. Check environment variable or Java version(over 1.6) please.
I tried installing after JDK 7 both 32 bit and 64 bit and setting JAVA_HOME - Program Files path and Program Files (x86) path both also it didn't worked.
I have a another system in which the Issue didn't occurred.
System Configuration :
OS - Windows 7 Enterprise
System Type - 32 bit operating system.
Installed Java - C:\Program Files\Java\jdk1.6.0_45
JAVA_HOME set as - C:\Progra~1\Java\jdk1.6.0_45
Now there may be many chances why installation is not getting in my win-8 64 bit.
64 bit JAVA support is not available.
I am not sure about ~ symbol in JAVA_HOME path but it may be to escape space between Program Files and I have not set java home using this symbol.
In win-8 64 bit I have 2 folders. Program Files and Program Files (x86) , I am not sure whether to use ~ or " " to set JAVA_HOME and for 32 bit java or 64 bit java installed.
May be only java 1.6 is supported right now.
I searched and found similar issues :
I find this link but not able to get why its advised to set the system environment Path Variable to 'c:\windows\system32'.
In this link its advised to use InstallManager.jar via cmd.exe.
I can try each possible assumption till it works but hoping to find a solution with proper reason why I am getting this error.
If any one knows how should I work this out please help.
At last solve the Issue.
Installed jdk1.7.0_51 (I think currently JAVA 8 is not supported).
Set the JAVA_HOME as C:\PROGRA~1\Java\jdk1.7.0_51 (thanks to #Michael comment).
This link: https://answers.madewithmarmalade.com/questions/16878/cant-install-tizen-sdk-on-windows-8-64-bit.html solved for me the problem of Tizen SDK installation:
Change directory to %LOCALAPPDATA%\Temp\tizensdk_TimeStampOfInstallationInvocation
java -jar InstallManager.jar
My system: Windows 7 Ultimate x64. Java's version installed (64 bit):
g:>echo %JAVA_HOME%
c:\Program Files\Java\jdk1.8.0_05
g:>echo %CLASSPATH%
c:\Program Files\Java\jdk1.8.0_05\jre\lib
Added to PATH: c:\Program Files\Java\jdk1.8.0_05\bin\
(Tizen IDE and "Hello World" example run just fine.)
I encountered the same problem and finally I realised that my version of Tizen installer is 64bit but I installed 32bit java in my computer. Then I downloaded 32bit Tizen installer and everything was fine.
I encountered the same problem, and it was solved by placing the Java path in the beginning of the system path ! weird.. but worked :)
You must include, depending on whether you downloaded the x86 or x64 Tizen installer, C:\Program Files (x86)\Java\jre7\bin or C:\Program Files\Java\jre7\bin in the PATH environment system variable. You can't use java 8. See this oracle page for instructions on setting environment variables. I have read some others mention that they put the entry at the very beginning of the PATH variable. I think this would only matter if you also had an entry for java 8, but better safe than sorry.
I believe similar questions have been asked before, but none of them matches mine perfectly. So I'm posting this one.
I'm using the Eclipse IDE in ADT bundle. Currently I'm doing some basic Java programming. Prior to this, I had downloaded and installed JDK from Orcale. The problem occurred when trying to set up Javadoc, as it needed the path to javac. Now, if I try where java, I get C:\Windows\System32\java.exe. If I try where javac, I get not found error. To complicate matters even further, echo %PATH% gives (I've added newlines for clarity):
C:\Program Files\Java\jdk1.7.0_03\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;
C:\Windows\System32\WindowsPowerShell\v1.0\;
C:\Program Files\Common Files\GTK\2.0\bin;C:\Python32;C:\Program Files\Calibre2\
But guess what, there's no folder by the name of jdk1.7.0_03 in the Program Files\Java directory! All I have is the "jre" folder.
I'm thoroughly confused. Where is the javac program? Where was the JDK installed? Am I missing something important here? Please help!
First download the jdk from oracle. During the installation, you should find a path to install your jdk, for example, C:\Program Files\Java\jdk1.7.0_05\bin. Then you should set up the environment variable for your jdk in Control panel -> System -> Advanced -> Environment Variables. The detail can be found in this post.
The javac file is usually in C:\Program Files\Java\jdk1.7.0_03\bin\javac
If you can't find it in that path, maybe the one that you installed is not jdk or maybe it is the wrong jdk. You don't need to install JRE, the JDK package has already contained JRE in it.
If you can't find javac in that path, maybe you installed the wrong java executable. Try to uninstall Java and install it again using the newest update.
Don't forget to set the CLASSPATH.
I just download Android Studio for Windows 7, the wizard went ok up to the end but now when I click on the shortcut or on the .exe to start the program nothing happens, no error, no new window, it's seems like it is doing nothing. Do you have any suggestion?
It's a bug of Android Studio 0.1v
You should add JAVA_HOME to the system environment variables.
http://tools.android.com/knownissues#as0.1
Open Start menu > computer > System Properties > Advanced System
Properties
In the Advanced tab > Environment Variables, add new system
variable JAVA_HOME that points to your JDK folder, for example C:\Program Files\Java\jdk1.7.0_21
Install latest Java Development Kit.
Set path in system variables for Java (ie *C:\Program Files\Java\jdk1.7.0_21\bin*)
Set JDK_HOME system variable (ie *C:\Program Files\Java\jdk1.7.0_21*)
If not working, set JAVA_HOME in system variable too (ie *C:\Program Files\Java\jdk1.7.0_21*)
If not working, check if you don't have spaces at the ends of the lines in system variables (PATH, JDK_HOME, JAVA_HOME)
You don't have to restart computer after changing system variables, just reload command prompt (if you are using it).
If it still not working, you probably have java.exe in C:/Windows/System32/. Rename it, restart command prompt and type java -version to check if you are using correct version of JDK.
I've posted tutorial how to fix Android Studio with screenshots on my blog.
I have had a similar problem with Android Studio 1.0 in windows 7 x64. When I ran studio64.exe it flashed the android studio logo and it disappeared immediately. Also I tried
studio64.exe > error.log
to figure out possible errors. JAVA_HOME=C:\Program Files\Java\jre1.8.0_25 environment variable was correctly setted.
Finally I decided to uninstall all Java versions (I had a mess of different java versions installed), both jdk and jre and reinstalled last version jdk 1.8.0_25. My problem was solved.
Regards,
Sometimes it might get stuck in memory. Open task manager, terminate android stuido. Open it up again.
If you install new the version of android studio.
It requires new jdk 1.8.
Just install the latest jdk 1.8 and android studio will work without the need to manually edit any environment variables.
You have to add a new system variable named ANDROID_STUDIO_JDK or JDK_HOME with the path to your JDK install folder, such as C:\Program Files\Java\jdk1.7.0_21\
I had the same exact problem and did try to do every thing manually nothing worked except for this command when I finished it finally launched. Open CMD with administrator if possible then put the following command:
set path="$PATH":C:\Program Files\Java\jdk1.7.0_21\bin
Then just try to launch it should work.
This is the only thing that worked for me.
Make sure you have Java 1.8 (JDK) or higher and update java_home and path to this version.
I did every tips but i checked AS requirements and updated jdk do 1.8.xx
It's possible there is a problem with your username (and name of the user folder). It shouldn't contain non-latin letters.
I had solved my problem (no response to an attempt to run Android studio) when I tried running the application as another Windows user (with name that consists of English letters only)
I got the same problem, but with no error message.
I found a studio.bat file and dig in it. There, I found some tips:
I found out thet the variable suggested in a previous post is incorrect.
ANDROID_STUDIO_JDK is no good.
STUDIO_JDK is the one.
Also, just to make the things/solution worst to corner,
I've uninstalled jre and jdk then reinstall jdk only.
The setup variables are like this:
JAVA_HOME is now pointing to C:\Program Files\Java\jdk1.8.0_172\bin
JDK_HOME is pointing to C:\Program Files\Java\jdk1.8.0_172
STUDIO_JDK is pointing to C:\Program Files\Java\jdk1.8.0_172
It's a mess but it's working...
Is it because I uninstalled/reinstalled java sdk and jre? or just the env. variables? who knows :)
Specs:
i5 with 4gig ram
win 10 32bit
In addition to following the steps pointed out by Tigris I also had to run the Android Studio with Administrative rights. Not sure why but I just made it in a few minutes ago.
Follow the steps here: http://tools.android.com/knownissues#as0.1
Run Android Studio as Admin
There is Another Issue
http://tools.android.com/knownissues
open a "cmd.exe" (command prompt), cd to the android-studio\bin folder and run "studio.bat". You will most likely see an error: for example b/55267 is about the option -XX:+UseCodeCacheFlushing not being recognized. Report the error, remove the line from the studio.exe.vmoptions or studio64.exe.vmoptions and it should now work.
There could be a process still running in the background that would need to be killed in the task manager. The name of the process is studio64.exe (at least that's the name on my machine). Could be because I am running a 64-bit OS. After killing this process, try to run Android Studio again, and it should work.
If your path and/or environment variables are not pointing to the correct JDK, things won't work properly.
A rock solid solution, especially if you must have multiple JDKs installed (e.g. Java 6/7/8) is to create a batch file to launch Android Studio.
Create a new file called studio.bat and place this somewhere outside the Android Studio installation, e.g.
c:\mydevstuff\launchers\studio.bat
(if you put the batch file anywhere in the android-studio folder, then you'll have problems when updating Android Studio).
Put the following code in the new batch file:
#echo off
REM Can make paths relative to SCRIPT_PATH if necessary
set SCRIPT_PATH=%~dp0
set ANDROID_STUDIO_JDK=<JDK Path>
set JAVA_HOME=<JDK Path>
set PATH=<JDK Path>\bin;%PATH%
cd <android-studio Install Path>\bin
start studio64.exe
Replace studio64.exe with studio.exe if you need the 32-bit version.
Replace
<JDK Path>
with the path to your JDK, e.g.
C:\Program Files\Java\jdk1.7.0_25
Replace
<android-studio Install Path>
with the path to your Android Studio installation, e.g.
C:\Program Files\Android\android-studio
Now you can just run the batch file to start Android Studio.
Additional:
If you want to pin to the Taskbar, then create a shortcut to the batch file and then change it's target to:
cmd.exe /c "<path to bat>\studio.bat"
Then pin this shortcut to the Taskbar by drag-and-drop.
You can also set it's icon from the original Android Studio studio.exe file.
I ran into this problem and these steps fixed it.
Remove ALL older JRE / JDK versions
Set values for JDK_HOME & JAVA_HOME to path of JDK install
if you use android studio version 2.3.3 you should have JDK with version 1.8 in the system environment values ,
to add it
click on Computer (in windows 7)
System properties
Advanced system settings (at the right)
Advanced (tab)
environment variables button
and edit the value of name JAVA_HOME to the file which contains jdk 1.8
if you don't have this variable make a new one
I'm trying to install Java to use Eclipse (I followed all instructions to install Java and Eclipse) but my Eclipse is not starting due to some bad configuration I guess. I can't figure out why it's not working for me.
Eclipse Installation:
Extracted Eclipse at C:\eclipse
Created a shortcut to my desktop having target C:\eclipse\eclipse.exe
When I try to run Eclipse with this shortcut, I see following Eclipse splash screen for a second and it disappears. Eclipse does not start at all.
JAVA Installation:
Installed JDK at C:\Program Files\Java\jdk1.7.0_10
Installed JRE at C:\Program Files\Java\jre7
Environment Variables Configuration:
JAVA_HOME = C:\Program Files\Java\jdk1.7.0_10
PATH = C:\Program Files\Java\jdk1.7.0_10\bin;
I tested my Java installation using the console and figured out this issue but I don't know how to fix it, and I guess this is causing Eclipse not to start.
Problem:
Go to Eclipse folder, locate eclipse.ini file, add following entry (before -vmargs if present):
-vm
C:\Program Files\Java\jdk1.7.0_10\bin\javaw.exe
Save file and execute eclipse.exe.
please try to execute java from
C:\Program Files\Java\jdk1.7.0_10\bin
i.e from the location where java is installed.
If it is successful, it means that the error lies somewhere in the classpath.
Also, this guy seems to have had the same problem as yours, check it out
Check that downloaded eclipse/JDK/JRE is compatible with your processor/OS architecture that is are they 32bit or 64bit?
Not able to run Appium {“message”:”A new session could not be created. (Original error: ‘java -version’ failed
I used Jdk 1.8 and JRE 1.8, Classpath is also set properly but I observed that Java command gives Error to initialization of VM (java/lang/NoClassDefFoundError: java/lang/Object)
Solution:
Uninstalled JRE and JDK completely
Installed JRE 1.8 then
Installed JDK 1.8
Set Classpath
check Java command works or not and its working
also able to execute the Appium program thru Eclipse Kepler Service Release 2 with JDK1.8 support
I had the same error in my case was when I needed to update jdk 7 to jdk 8, and my bad was just I installed jdk8 and I never installed jre8, only that, the error was solved immediately when I installed jre8.
Try placing the desired java directory in PATH before not needed java directories in your PATH.
I had the same issue on Windows 7 and I had to install both JDK and JRE and it's a success.
I faced the same problem,Eclipse splash screen for a second and it disappears.Then i noticed due to auto update of java there are two java version installed in my system. when i uninstalled one eclipse started working.
Thanks you..
I've observed this with STS and Eclipse and running java from CMD too on Windows 7/8/10 and following was my simple solution:
Actually, when I installed JDK 8 and STS/Eclipse it created one directory i.e. C:\ProgramData\Oracle\Java\javapath with the following files:
C:\ProgramData\Oracle\Java\javapath\java.exe
C:\ProgramData\Oracle\Java\javapath\javaw.exe
C:\ProgramData\Oracle\Java\javapath\javaws.exe
Along with that, it appended Path Environment variable of System with this location C:\ProgramData\Oracle\Java\javapath
I've just removed above entry from Path Environment variable of System and added the location of the actual JDK instead i.e. C:\Program Files\Java\jdk1.8.0_131\bin
Now that is not necessary to add that -vm option in eclipse.ini or
SpringToolSuite4.ini either.
I just spent about 1 hour to figure out possible solution for the same error.
So what I did under MS WIndows 7 is following
Uninstall all Java packages of all versions.
Download last packages Java SE or JRE for your 32 or 64 Windows and install it.
First install JRE and second is Java SE.
Open text editor and paste this code.
public class Hello {
public static void main(String[] args) {
System.out.println("test");
}
}
Save it like Hello.java
Go to Console and compile it like
javac Hello.java
Execute the code like
java Hello
Should be no error.
sometime you missed some file like I missed my one file rt.java
so better to check yours .........
C:\Program Files\Java\jdk1.8.0_112\jre\lib
0
I just spent about 1 hour to figure out possible solution for the
same error.
So what I did under MS WIndows 7 is following
Uninstall all Java packages of all versions.
Download last packages Java SE or JRE for your 32 or 64 Windows and
install it.
First install JRE and second is Java SE.
List item
Below error is thrown when there are multiple versions of jdk on your machine:
error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
so for this Just use below:
set PATH="JDK bin path" in cmd
I had a same issuse, my file location was in D-drive, and then i shifted to the c-Drive and it works.
Is there a way to prevent that the Java installation routine (e.g. jdk-7u1-windows-i586.exe) copies java.exe into C:\Windows\system32 directory?
I have to install my software on a client's laptop and I don't want to break other Java applications which are already installed on the machine. In other words I want to install a private JRE which is only used by my software.
By now, I copied an already installed JRE from my computer to the client's machine.
I discovered yesterday that there is a problem with Java versions on Windows, as you know keeping java up to date these days is critical, especially the JRE used by Internet explorer located in the Windows system32 or syswow64 folder.
You can perform a search for java in your C: drive and look at the various executable files it finds to determine if the situation applies on a specific system.
After doing some research I find that when the Java updater runs, it only updates the files installed in the JAVA home , usually located on the program files, but it does NOT update the files located in the windows system folder. As a result and since the system folder is in the default system PATH , the usage of Internet Explorer continues to use an old version of the JAVA files ( java.exe , javaw.exe , javaws.exe )
The solution is to uninstall java using the control panel uninstall programs feature, download most recent version and install again.
Cheers!
Fernando
I recently upgraded to java 8 and discovered this problem as the java version under system32 was still java 7. It stops you even running version as it complains about the registry keys
U:\>java -version
Error: Registry key 'Software\JavaSoft\Java Runtime Environment'\CurrentVersion'
has value '1.8', but '1.7' is required.
Error: could not find java.dll
Error: Could not find Java SE Runtime Environment.
Doing the following pointed me to the culprit:
U:\>where java
C:\Windows\System32\java.exe
C:\Program Files\Java\jdk1.8.0_45\bin\java.exe
I 'solved' this problem by just deleting the java under system32! I'm unsure of what consequences this will have.
You can just provide the JRE you want to use on your software and:
Set the JAVA_HOME variable before you run your application
Point to the correct java.exe file (e.g. ..\jre1.5.0_22\bin\java <your_java_main>)
This can be done in a *.bat file for example.
After running the *.bat file you created, all other java version will be ignored and it won't matter which versions are, or will be, installed on that pc.
I found the newest JDK still doesn't write correct code against registry.
The issue is if a computer doesn't have JRE, JDK doesn't register JRE in registry correctly.
For those install JDK 1.7u72 Just add Software\JavaSoft\Java Runtime Environment as the error message indicate. And add a string entry of CurrentVersion with value 1.7.
And then add Software\JavaSoft\Java Runtime Environment\1.7 and put a JavaHome string entry with value "C:\Program Files\Java\jre7". And JRE will function correctly.
Blame Oracle, if you use Registry, then write correct code, otherwise don't use the Registry!
All you have to do is go to Control Panel -> Programs Uninstall a program. Uninstall the old java updates and keep the newest java update and java development kit update. Your newest java update and java development kit update should have the same number.
Windows 10 Solution
Check Java Version in Console (CMD) with java -version
Check in Console (CMD) with where java, which Java Path's are enlisted.
If it you shows you "C:\Windows\System32" in its output, you will have a problem to get to your %JAVA_HOME%, where your wanted Java version resides.
Meaning, you need to get rid of "java.exe" in "C:\Windows\System32".
Just uninstall the JRE in the Software ("Programs and Features")
Hint: Keep in mind, do NOT the JDK, here in my case "Java SE Development Kit 8 Update (64-bit)"), but the JRE.
One way I would try would be to create a write-only empty file with the name java.exe into the System32 folder.