I'm new to Mac OS and I would like you to help me a bit with Eclipse Kepler 4.3 IDE
I drag the eclipse folder after having uncompressed it inside of the Applications folder. The icon appears in the Launchpad but when I click on it, nothing happens.
I had removed the Java v 1.6 that Eclipse needed at the first installation because I had already installed Java v 1.7 (JDK). At the second installation, it didn't ask for anything in Java but the icon still doesn't work.
The only way I can launch Eclipse is by clicking on the eclipse alias in the eclipse folder.
Do you know how to help me ?
The problem here is that you uninstalled Java 6. When you installed Eclipse, the .app file was configured to run on Java 6, and when that is gone, it won't work. The solution is to reinstall Eclipse.
Related
I previously had JDK 9 installed. Because of the issue NetBeans has with JDK 9, I deleted JDK 9 from my computer and installed JDK 8.
Now, Netbeans doesn't have any issue anymore, except that it pops up this window whenever I open NetBeans. If I click yes on window, everything works fine. It just bothers me I have to click it every time I open NetBeans.
As the link in the OP comment points out, the cause of the problem is almost certainly an invalid value for netbeans_jdkhome in file netbeans.conf:
netbeans_jdkhome="C:\Java\jdk1.8.0_161"
Make sure that the string value references a valid JDK8 installation. (File netbeans.conf resides in the etc directory directory directly under the NetBeans installation directory.)
However, there are also a couple of other configuration settings worth checking:
Select Tools > Java Platforms and verify that the Platform Folder is valid:
Select Tools > NetBeans Platforms and verify that the Platform Folder is valid:
As a related issue, although NetBeans 8.x does not support Java 9, you can download a beta version of Apache's NetBeans 9, which supports both Java 9 and Java 10, from the Apache NetBeans site. Note that:
Installing NetBeans 9 has no impact on your NetBeans 8.x installation.
You can safely run NetBeans 8.x and NetBeans 9 concurrently.
Update:
Try the following if you get an "access denied" error when updating netbeans.conf on Windows:
Close NetBeans, then open netbeans.conf in Notepad.
Make your changes and then save the file to any temporary location such as C:\temp.
In Windows File Explorer move that file you just created to the NetBeans 8.x target directory (e.g. C:\Program Files\NetBeans\etc) to overwrite the existing version of netbeans.conf.
Restart NetBeans.
The problem is that I already downloading the Eclipse installer, but a warning keeps on occurring that I need a new JVM version 1.8 or higher. So, I go to the Oracle website and download the latest version of java. The warning keeps on appearing when I try to re download the Eclipse IDE. When I check java -version on Terminal, the version is still shown as 1.6 (the old java version). I am using a MacBook version 10.12.13 and using macOS Sierra. I am trying to download Eclipse Neon.
Download links(download Java first, THEN Eclipse): java - eclipse ---
These are what I used for the downloads, and they work great. I also use a mac.
For java(Be sure to click on the boxed option). You must accept the license agreement:
And the eclipse link is pretty self-explanatory. Just press the orange "download" button in the top right corner.
Problem with NetBeans re-installation( the first one worked fine): All of the available components are already installed. click cancel to exit the installer. No way to proceed!
Previously I downloaded and installed the window version of NetBeans IDE 8.1 with "All- a full download option (215 MB)" , which contains all the runtimes and technologies available for the NetBeans IDE. https://netbeans.org/downloads/. a weak ago i restored my computer to an earlier point in time. after restore my recently installed applications are deleted including NetBeans, my favorite IDE to run java.
When I try to install it now, I got a problem! it says all the available components( packs and runtimes) are already installed. And I have no way to go forward. The "Next" button is disabled.All of the available components are already installed. click cancel to exit the installer. No Next button. please see the picture
NetBeans IDE 8.1 Installer welcome snapschot
Go to "C:\Program Files" and look for "NetBeans" folder, then delete that folder and try reinstall it, it should work fine this time.
Also,this can help link
On debian you might try go
/usr/local/netbeans-8.2/uninstall.sh
Try deleting the glassfish server and the Apache server from the program files too, if the above don't work
I currently have a windows xp 32-bit with JDK 7 installed. I previously had installed netbeans IDE 7.1.3 Java SE kit, but deleted it so that I could download the full version. However, every time I have tried to download any version of the netbeans IDE, it says that either all the programs are already installed or that it just simply couldn't download the programs. I have searched around through my programs and found nothing netbeans-related, except in the add or remove programs, where it shows the netbeans IDE 7.3.1. I've tried several times to delete it, but it consistently fails. I'm fairly new to programming, so any help would be much appreciated.
NetBeans also installs to the AppData folder, on Windows XP it's located in:
C:\Documents and Settings\[[UserName]]\AppData\Roaming\NetBeans
And on Vista and later for others with this problem:
C:\Users\[[UserName]]\AppData\Roaming\NetBeans
Replacing [[UserName]] with your current User profile name. This folder must be removed to completely reinstall NetBeans.
I'm extremely confused about how to set up Java on Eclipse. I don't get how classpath/system variables/etc all works. I set my Java compiler settings from 1.7 to 1.6 after I uninstalled 1.7 (I still have 1.6). But it's still not working. Any help?
Open Eclipse. Follow Project => Properties => Java Build Path.
Come onto Libraries tab and on the right hand side you will see some buttons, click Add Library.
Select JRE System Library and click "Next" button. By clicking on Installed JREs button you will see the JREs that your Eclipse recognizes. If the JRE version is not visible there, you can use "Add" button to add a new JRE, and make sure you set the path of new JRE correctly. Sample path on my machine: C:\Program Files (x86)\Java\jre6
Probably you have to set up classpath: http://javarevisited.blogspot.com/2011/01/how-classpath-work-in-java.html, or may be you have only JRE (not JDK)?