Re: Java_home Not Found In Your Environment Windows 10
Evaristo Nicholls
For example, one of the most common JAVA_HOME configuration problems arises from the fact that the environment variable has never actually been set up. Such a scenario tends to trigger the following error messages:
Well, you fix this by in the Windows environment variable editor where you can actually add a new system variable. If you know your way around the Windows operating system, you should be able to add the JAVA_HOME environment variable to your configuration and have it point to the installation root of your JDK within minutes. The Windows 10 setting looks like this:
The JAVA_HOME environment variable must point to the root of the installation folder of a JDK. It cannot point to a sub-directory of the JDK, and it cannot point to a parent directory that contains the JDK. It must point directly at the JDK installation directory itself. If you encounter the JAVA_HOME invalid directory error, make sure the name of the installation folder and the value of the variable match.
Other things that might trigger this error include spelling mistakes or case sensitivity errors. If the JAVA_HOME variable is set as java_home, JAVAHOME or Java_Home, a Unix, Linux or Ubuntu script will have a hard time finding it. The same thing goes for the value attached to the JAVA_HOME variable.
When you download a JDK distribution, some vendors include a Java Runtime Environment (JRE) as well. And when the JAVA_HOME environment variable gets set, some people point it at the JRE installation folder and not the JDK installation folder. When this happens, we see errors such as:
If you plan to run software programs like Maven, Jenkins, Gradle or Tomcat, you'll not only need a local installation of the JDK, but you'll also want to ensure that you have set JAVA_HOME correctly. Here is how you can accomplish that task with a demonstration of how to set JAVA_HOME in Windows and echo the result to validate that the changes have gone into effect. Also, let's explore how you can add Java to the Windows PATH, which is another configuration parameter that is often set after a JDK installation.
Not every Java installer will automatically set JAVA_HOME for you. The AdoptOpenJDK one will, and it can configure the PATH variable for you as well. But, it doesn't do it all by default. You must perform a custom install and select one of the following two options to have the OpenJDK installer set JAVA_HOME and PATH environment variables:
That's all there is to it. Once the OpenJDK installation is complete, the JAVA_HOME variable will be configured and the bin directory of the JDK will be added to the Windows PATH. It doesn't get much easier than that.
If your JDK installation didn't set JAVA_HOME automatically, you can always open the Windows environment variable editor and set it yourself. This is the easiest way to manually set JAVA_HOME in Windows 7, 8 and 10.
After you add the new environment variable, close any and all DOS prompts and command windows, because these tools load environment variables only when they first start. If you try to access the JAVA_HOME variable in any windows that were open prior to the change, the variable will come back as null or undefined. But if you open a new command window, scripts that search for JAVA_HOME will run successfully.
As you can see, the setx JAVA_HOME approach is relatively simple. Still, command line interface tools can intimidate some people, and this type of manual coding is prone to error. However, when you write scripts to automate the configuration of the environment, the ability to script the process with setx becomes invaluable.
The manner in which you get JAVA_HOME within batch files and shell scripts follows the exact same syntax used by the echo command. Bookend the variable with percentage signs and use that variable within your code just as you would any other scripted variable.
Scripts that use JAVA_HOME should always be checked to see if the variable exists. If it does not, an appropriate error message will arise. Here is how the Apache Maven project gets JAVA_HOME in its startup script and reports any errors during the process:
The JAVA_HOME and PATH environment variables serve two very different purposes. JAVA_HOME simply points to where Java is installed. If you add something to the PATH variable, it makes it available throughout the entire operating system. Of course, many developers who install Java actually want the runtime universally available, so they set the JAVA_HOME and PATH environment variables at the same time.
The big distinction between PATH and JAVA_HOME settings is that the former points to the JDK bin directory, while the latter points to the installation directory. Developers are notorious for mixing up these two settings, which invariably leads to program start issues and the subsequent JAVA_HOME error messages such as "java_home is set to an invalid directory" or "java_home environment variable is not set."
It is worth noting that while a JDK installation is linked to the JAVA_HOME environment variable, JRE installations are typically linked to the JRE_HOME variable. The steps to set up JRE_HOME on a Windows machine are exactly the same as those outlined above, with the exception that the JRE_HOME variable will point to the root of the JRE installation, while the JAVA_HOME environment variable in Windows points to the root of the JDK installation.
I've searched the forums and was unable to find anything with the exact issue I'm having. I created a new EC2 Windows instance and installed Ignition 8.1.23. I did not install Java separately. The gateway runs fine until a reboot, then the Ignition service would not start. This was found in the log:
I will probably set the environmental variables instead of hardcoding the path as a permanent solution but I wanted to check if anyone else has seen this issue before and hopefully if anyone encounters it in the future they will see the post and be able to resolve.
The ignition.conf from a backup is supposed to overwrite the existing one. And even for that JAVA_HOME setting, that's a valid thing to change from the default in 8.1 because you're allowed to specify your own JDK to use instead of the one we provide.
Strange error... was JAVA_HOME set before when it was working correctly? What path is it set to? There's no need to set it explicitly. I don't think the error is indicative of an incorrect path, though.
Its looks like there is definitely something wrong with your environment variables. If you run echo %PATH% from the command line does this print successfully or do you receive the same "system cannot find the path specified" errors?
I suggest running Process Monitor when running the DR tool to see what it's attempting to access when it's running. You should see results in ProcMon indicating files or folders are not found, which may be leading to the error you're seeing.
Process Monitor. I guess my lack of server background is showing now, I had never heard of Process Monitor until you mentioned it. This is a very helpful suggestion. Now I'm going to read up on the help, possibly learn how the filtering works so I can see DR tool activities without the noise of everything else. Thanks for being patient with my dumb questions. Our GIS servers pre-dated the advent of our in-house IT guy, so he refuses to touch the GIS servers.
I'm trying to figure out how to run Process Monitor when I run the DR tool. Is that through the Process Monitor GUI or through a command line? There's so much going on in Process Monitor that I can't figure out how to pare it down to this task.
By default, VS Code attempts to locate your local Java installation by looking for a JAVA_HOME or JDK_HOME environment variable on your computer. If VS Code cannot find your Java installation, or if you want it to use a different installation, change the salesforcedx-vscode-apex.java.home setting.
Not sure but you need java 8 specifically. Doesn't seem to work with Java 11.I ran into the problem and found that the required version is mentioned in these issues and comments on GitHub.
-vscode/issues/100 -vscode/issues/930
Right-click on "This PC" or "My Computer" and select "Properties."Click on "Advanced system settings" on the left.In the System Properties window, click the "Environment Variables" button.Under "System Variables," click "New."Enter JAVA_HOME as the variable name.Set the variable value to the path of your Java installation directory (e.g., C:\Program Files\Java\jdk1.8.0_181).Click "OK" to save the changes.
Caused by: org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: packageAndLaunchActivityFromManifest failed. Original error: Could not find aapt Please set the ANDROID_HOME environment variable with the Android SDK root directory path. (WARNING: The server did not provide any stacktrace information)
In Search, search for and then select: System (Control Panel)
Click the Advanced system settings link.
Click Environment Variables. In the section System Variables, find the PATH environment variable and select it. Click Edit. If the PATH environment variable does not exist, click New.
In the Edit System Variable (or New System Variable) window, specify the value of the PATH environment variable. Click OK. Close all remaining windows by clicking OK.
Reopen Command prompt window, and run your java code.
Hello @Pac_Chan , from your logs, it can correctly get the path you have set in your bash_profile, but it says it is not a valid path. Are you able to navigate to the location /Users/Pac/Library/Android/sdk from terminal?
Leaving the solution here, incase anyone faced similar problem in Mac Catalina, when running Appium C# script to initialise Android driver. Tried fixing .bash_profile and .zprofile files as mentioned in many answers, nothing seem to work.
Building a native executable requires using a distribution of GraalVM.There are three distributions:Oracle GraalVM Community Edition (CE), Oracle GraalVM Enterprise Edition (EE) and Mandrel.The differences between the Oracle and Mandrel distributions are as follows:
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