In many cases, this environment already exists because it was installed when the system was configured or when another program was installed. Under Java Platform, Standard Edition, select either the current release, or click Previous Releases to install an earlier supported version. After installing the JRE, run the following test to verify the version of Java that is recognized by the system. On the keyboard, press the Win Windows key and the R key simultaneously to open the Run box.
You can install Java from the Java website. Not Helpful 5 Helpful 0. Whenever I try to open up shimeji with Java, it says "Error: a JNI has occurred, please check your installation and try again. This error means that your development kit and runtime environment aren't working together correctly.
Users with this error reported that the issue was resolved once they've upgraded JDK the development kit. On Windows, searching for "check for updates" in the start menu brings up Java's update checker, try to use that to make sure Java is up-to-date. If you're on another operating system, look how to update Java on your specific platform.
If updating Java to a newer version doesn't work, try to look for other solutions online or reinstall Java. I tried to inject a script on roblox but Java said there was an error in the main process - what do I do? This is a JavaScript error, not a Java error.
It's essential to note that Java and JavaScript are two very different programming languages despite the deceiving name. During compilation it shows "Cannot find symbol and the package doesn't exist". How do I run a Java program on the command prompt? Before running a Java program from the command prompt, you'll have to make sure your file is compiled. If you have a. Javac is used to compile Java programs. If you don't have it, look into downloading it.
You should now have the file "foo". If you've had this file or already had it, all that's left is to run "java foo". This command will run the Java program from the command prompt. I thought I installed Java, however I can't find it in my program list. When I try to reinstall it, it says I need to complete the first download. How do I find the original download so I can uninstall it? It sounds like Java isn't installed on your computer yet due to it telling you that the installation hasn't completed and it not being listed in your programs list.
Granting this, you can't uninstall it. Once you are sure your computer has no malware, you can temporarily disable virus scanning. The method depends on the antivirus program you are using, but the most common way is to right-click the antivirus program icon on the Taskbar and select the option to pause protection. When installing Java, don't forget to re-enable the antivirus program.
According to Microsoft, the profile of the user account may cause problems when installing Java. Try creating a new user account and assigning Administrator permissions for this account. Then, log in to the newly created user account and try installing Java again. Errors when installing Java may involve other software running on the system, you can fix by disabling the startup software.
It will activate the Windows System Configuration utility, allowing you to select the startup items you want to disable without any changes on the operating system. This error often occurs during the installation process informing the user of the installation process is not complete.
The cause of the error is currently unknown. Solution 1: Restart your system and remove the old version. After seeing error appear on the screen, proceed to restart your system. When notified, on the Download dialog box, select Save and select the location to save the download package in the most convenient location probably on the Desktop. If you encounter any problems during installation, it is best to remove all Java sessions that are currently on your system.
Reboot your system after uninstalling old Java versions before installing Java. This solution disables Java content on the browser before installing. After seeing the error appear on the screen, close your installer again.
Uncheck the option Enable Java content in the browser. During the installation of Java, a popup window displays an error message: The installer cannot proceed with the current Internet Connection proxy settings. The Java Offline program contains all the files you need to install.
I believe it is caused by having multiple version of Java installed at the same time. When uninstalling one of them it removes some file needed to uninstall the other versions and you are left in a state where you can't reinstall or uninstall the JRE.
I used the Microsoft FixIt tool [stand alone download here]. I created the portable fixit and then ran on my local machine.
The tool has a list of fixes and you need to find "Fix problems with programs that can't be installed or uninstalled" and click "Run Now". The wizard is self-explanatory and after running will show something similar to this:. Once you see this, double check your control panel that the JRE was actually uninstalled and attempt to install if desired. I had a similar problem on my Windows 7 box where I was trying to uninstall Java and do a clean install of a newer version. Something got messed up and I would get the error message during the uninstall and attempted reinstall.
Here's information about how I was able to fix the problem, and maybe this will help you:. The message was: Error There is a problem with this Windows Installer package. There was indeed no regutils. So I copied over a regutils. Then the new clean install of Java also worked. So take a look at your logfiles and hopefully that will give you more detailed information about the error. I guess this should be asked in superuser. Anyway, the installation package comes as a msi file, correct?
If so you can try to run msiexec with log enabled. One way only way which worked for me - i tried most of the things listed in this post, including MockerTims script was to search through Windows Registry for Java and then carefully remove anything that seemed to point to the specific JRE version i wanted to remove.
0コメント