After setting JAVA_HOME to C:\Program Files\Java\jdk1.8.0_171 and adding %JAVA_HOME%\bin to my path, I am still getting this error. I have checked that the path is correct multiple times and every solution online just says to add these two variables. Is there any other step to fix this?
I'm getting this error when trying to run "java -jar start.jar" for solr.
You have not added Java Location as the Path variable in your system. The Command Prompt or Powershell can only take you to the path/paths you have already specified.
Add "C:\Program Files\Java\jdk1.8.0_171\bin\" to the Path variable in your Advanced System Settings->Enviroment Variables->Path.
Make sure you run the command in a new DOS shell. If you are using the same one you ran the java command in before setting the path, it won't have the path update.
Don't type path manualy - choose path by [Browse directory] button.
Path looks the same but can be different (maybe encoding of signs)
When trying to check the current version of Java in which I am running, I received the error "java is not recognized as an internal or external command, operable program or batch file.".
I am running Windows 7 OS and have downloaded the latest JDK and felt I may have accidentally deleted the java from machine as before I was able to check the Java version using the command "java -version".
What software must I download to get Java working on my machine again?
EDIT:
I have managed to get Java running from my cmd again after ensuring all environment variables pointed to the current Java SDK.
You need to configure your environment variables, JAVA_HOME and PATH.
JAVA_HOME must contain the path to java, and you should add %JAVA_HOME%\bin to PATH
Alternatively, you can simply add to your PATH the whole path to the bin folder, without the JAVA_HOME variable, however, this makes a little more annoying when you need to have more than one java version on your machine (that way you only need to change JAVA_HOME and don't even bother with PATH)
For Windows 7:
Right click on My Computer
Select Properties
Select Advanced System Settings
Select the Advanced tab
Select Environment Variables
Select Path under System Variables
Click on the Edit button
In Variable value editor paste this at the start of the line
C:\Program Files\Java\jdk1.7.0_72\bin;
Click Ok then Ok again
Restart command prompt otherwise it won't see the change to the path variable
Type java -version in the command prompt.
Notes on Step 8:
The version of java in this may be different from the one used here -- this is only an example.
There will probably be other values in the path variable. It is really important that you don't delete what's already there. That's why the instructions say to paste the given value at the start of the line -- this means that you don't remove the existing value, you just put java before it. This also fixes any problems you'd be getting if an other version of java is also on the path.
Notes on Step 6:
This sets the path for the computer, not for the individual user. It may be that you're working on a computer which other developers also use, in which case you'd rather set the user variables, rather than the system variables
It sounds like you haven't added the right directory to your path.
First find out which directory you've installed Java in. For example, on my box it's in C:\Program Files\java\jdk1.7.0_111. Once you've found it, try running it directly. For example:
c:\> "c:\Program Files\java\jdk1.7.0_11\bin\java" -version
Once you've definitely got the right version, add the bin directory to your PATH environment variable.
Note that you don't need a JAVA_HOME environment variable, and haven't for some time. Some tools may use it - and if you're using one of those, then sure, set it - but if you're just using (say) Eclipse and the command-line java/javac tools, you're fine without it.
1 Yes, this has reminded me that I need to update...
Assume, Java/JDK is installed to the folder: C:\Program Files\Java:
Follow the steps:
Goto Control Panel → System → Advanced system settings → Advanced → Environment variables (Win+Pause/Break for System in Control Panel)
In the System variables section click on New…
In Variable name write: JAVA_HOME
In Variable value write: C:\Program Files\Java\bin, press OK:
In the System variables section double click on Path
Press New and write C:\Program Files\Java\bin, press OK:
In Environment variables window press OK
Restart/Run cmd.exe and write: java --version:
Search environment variables.
open the "edit the system environment variables".
then click on "environment variables".
Under "User variables" click on "Path" then "Edit".
Find your Java path and click "Edit".
then paste the path of your java installation folder.
Mostly you can find it on a path similar to this.
C:\Program Files\Java\jdk-12.0.2\bin
Then click OK.
now in the start menu, type cmd.
open the command prompt.
type
java -version
If you did it right,it should show something like this.
For me its start working after putting ,: in the starting of the system variable path :--
My solution was to put same value (path to JDK bin folder) in JAVA_HOME and Path
In my case, PATH was properly SET but PATHEXT has been cleared by me by mistake with .exe extension. That why window can't find java or anything .exe application from command prompt. Hope it can help someone.
This problem is on Windows 8.
First copy your Path of java jdk - e.g. C:\Program Files\Java\jdk1.7.0_51\bin.
Right on the My Computer Icon on the Desktop and Click Properties.
Select 'Advanced System Settings' in the left pane.
Under 'Advanced' tab, select 'Environment Variables' at the bottom.
In System Variables, select 'Path' Variable and edit it.
Paste the path and add a ';' at the end - e.g. C:\Program Files\Java\jdk1.7.0_51\bin;
I had the same problem. Just Install the exact bit of java as of your computer. If your PC is 64 bit then install 64 bit java. If it is 32 bit then vice versa :)
Not sure why, but in my case, the reason was because I was running Anaconda terminal instead of the CMD.
After I use CMD and update the path settings as mentioned by all comments above the issue solved on my side.
In case you are using a laptop and do not have the Pause\Break button.
For windows 10 users with 20h2 and above:
1 WIN → type "About your PC" → scroll at the bottom → Advanced system settings → Environment variables or WIN+R → shell:::{bb06c0e4-d293-4f75-8a90-cb05b6477eee} to open Classic System Properties → on the left side → Advanced system settings → Environment variables
Also for Windows 10 and Windows 7:
1 WIN → This PC → properties → Advanced system settings → Environment variables
In the System variables section click on New…
In Variable name write: JAVA_HOME
In Variable value write: C:\Program Files\Java\jdk-15.0.2\bin, press OK
I have taken steps 2-4 from Vijay Bhatt
There is a bit faster way to set a system variable. Run a console (terminal) as an administrator.
General command synax to add a new variable:
setx variableName value /M
In our example, we would need to set it as
setx JAVA_HOME "C:\Program Files\Java\jdk-15.0.2\bin" /M`
Like this:
/M - flag specifies to set the variable in the system environment.
After command execution, you should see the message:
SUCCESS: Specified value was saved.
How can I check that it is added?
Close your active terminal;
Open your favorite terminal;
Type java -version.
You should see something similar to this:
Notice:
User variables can be created w/o having a root (administrator privileges), whereas to create System variable; You need to open a console as a root.
I have used C:\Program Files\Java\jdk-15.0.2\bin as an example, in your case, it could be different from mine.
I opened a new command prompt in Windows 10 after updating the environment variables without closing the old one(To have my commands handy and lazy to type again)
Still, the new cmd window was referring to the previous version of Java.
Then once I closed the all cmd prompts that ran with admin privileges, the new java version was getting reflected.
I corrected my path variable but command prompt need to Restart otherwise, it won't be able to verify the change to the path variable. May be helpful for someone like me. so
"restart command prompt"
Restart the command prompt before checking the version of JDK installed. I spent 02 days on it until my problem resolved when I restarted the command prompt before checking javac - version, javac etc.
if you have cygwin installed in the Windows Box, or using UNIX Shell then
Issue bash#which java
This will tell you whether java is in your classpath or NOT.
If you have set the environment variables (JAVA_HOME and PATH) under user variables, command prompt (run as administrator) will not identify java. For that you need to set environment variables under system variables.
Try this:
System variables:
PATH = /bin folder of your jdk install
https://docs.oracle.com/javase/10/install/installation-jdk-and-jre-microsoft-windows-platforms.htm
Just some extra information for people that have still problems,
instead of editing the path variable of java, delete that part of the path(only the java!!)
and make a new variable pointing tpo the jdk/jre.
this seemed to work for me.
I am using Windows 7 and 8 in my PC .
I have installed jdk 7 and created class path for bin as it should be. But when I enter javac in the command prompt, it throws an error:
`javac is not recognizing as internal and external`.
I have searched for a solution in many websites but nothing could solve my problem.
Would you please help me and suggest where my mistake could be?
You need to set the environmental variables. Run sysdm.cpl from run dialog box to open advanced system properties.
In the environmental variables, add a new one like in this dialog.
Name : JAVA_HOME
VALUE: C:\Program Files\Java\jdk1.7.0_21\
Now edit the value of the PATH variable and add ;%JAVA_HOME%\bin\; at the end of it's value.
Now, restart your system and you can run java related commands from command prompt.
also set path in your *System variables:path=c:/..../jdk/bin/;c:/..../JRE/bin;.;
user Variables:CLASSPATH=c:/..../jdk/bin/;c:/..../JRE/bin;.;
Double check your system variable "Path" on System Properties appending %PATH_TO_JDK%\bin. Don't forget to restart the command prompt after.
It is path not classpath - -till your bin folder
and restart cmd
i am facing the same issue as mentioned in the following link
JAVA_HOME points to the wrong place
but this is eclipse, and I am facing it in DOS command promp > ant jar
Note: i have updated enviro variables correctly(JAVA_HOME and ANT_HOME)
Check your registry to see if the path has been updated there.
I experienced a similar problem and was able to fix it with the following: I'm Using Windows 7 x64
Start-> Run-> "regedit".In the Registry goto:
Computer -> HKEY_LOCAL_MACHINE -> SOFTWARE -> JavaSoft -> Java Runtime Environment
Check to see if JavaHome points to the right location, you can modify it if need be. Mine for example reads: C:\Program Files\Java\jdk1.7.0_45\jre
and the RuntimeLib reads:C:\Program Files\Java\jdk1.7.0_45\jre\bin\jvm.dll
As for your Ant install, do the same checks, just be sure not to forget the path endings.
Hope this helps.
Edit:
I was blown away by the ease of the tool provided in this answer: Submitted by EricIf anyone is having issues running jar files I highly recommend taking a look at this.
If you are absolutely sure that you have got JAVA_HOME right under Computer -> ... Environment Variables -> System, then restart your command prompt for it to pick up the new value.
I have JDK installed in Vista. I want to run java from the command line. How do I configure the path variable?
If I'm not able to set the JAVA_HOME variable, what is an alternative?
Open My Conputer -> General Settings -> Environment variables and add as global
Key:JAVA_HOME
Value:C:\jsdk etc. etc.
And then modify the Path variable
Value ( type at the end )
....something;something;something;%JAVA_HOME%\bin
Reopen your command prompt and type
javac
And see if it works
EDIT
Moved my comment to the answer
The command prompt has some problems dealing with the empty space.
What I usually do is install the jdk directly on C: to get rid of space in "Program Files"
So installing it directly in C: will give you an "spaceless" path to the executable:
C:\jdk1.6.0_14\bin\javac
Instead of
C:\Program Files\Java\jdk1.6.0_14\bin\javac
Some times you'll get: C:\Program "executable not found" or something like that.
Installing directly on C: does the trick
I'd suggest looking at the java tutorial.
http://java.sun.com/docs/books/tutorial/essential/environment/paths.html
CLASSPATH manual
Running java from the command line
If the java program is available in your path then you should just be able to do;
c:> java -classpath somedir com.example.Main
if java isn't available to you then you can do
c:> SET JAVA_HOME=c:\path\to\java
c:> <same java stuff from above>
Use the -classpath option for the java command to specify where your classes are.
The value of the classpath option is a list of directories, JAR archives, and ZIP archives that contain classes, structured into directories that mirror the classes' package structure. The list uses the path delimiter, which is plaform specific: on Windows, it is ";", other platforms use ":".
Using the CLASSPATH environment variable is discouraged because changes for one program are likely to interfere with the operation of other programs.
There is some problem with Vista and the path variable containing %JAVA_PATH% if the JAVA_PATH value has spaces.
I fixed this manually by setting the %JAVA_PATH% to c:\program files\Java\<whatever> and then added to c:\program files\Java\<whatever>\bin to the Path variable in Vista.
If you deleted your My Computer icon, you can also go to Control Panel -> System -> Advanced system settings (which gives you System Properties dialog) -> Advanced tab -> Environment Variables. Path is listed in the second text window.