Cannot install JavaFX SDK

Hi,

I got the following error message while trying to install JavaFX 2.0 SDK (javafx_sdk-2_0_1-windows-i586.exe):
JavaFX SDK requires the Java Deployment Kit (JDK)

Consulte the JavaFX 2.0 System Requirements page, it says:

You must have a minimum of Java SE 6 Update 26 installed on your system.

whereas I had Java SE 6 Update 29 already installed, using java -version command:

java version "1.6.0_29" Java(TM) SE Runtime Environment (build 1.6.0_29-b11) Java HotSpot(TM) Client VM (build 20.4-b02, mixed mode, sharing)

So what might be wrong in my case?

Do you have the JDK installed? JRE and JDK are different. Try running javac -version and let us know what the results are.

Mohamed Sanaulla wrote:Do you have the JDK installed? JRE and JDK are different. Try running javac -version and let us know what the results are.

Thanks for your reply.

Yes, I have JDK installed, running javac -version outputs only "javac 1.6.0"

JavaFX Requirements:
You must have a minimum of Java SE 6 Update 26 installed on your system.

So you better install Java 7 JDK.

Mohamed Sanaulla wrote:You must have a minimum of Java SE 6 Update 26 installed on your system.

So you better install Java 7 JDK.

Huh? Can you explain the logic behind that conclusion?

Tim Moores wrote:

Mohamed Sanaulla wrote:You must have a minimum of Java SE 6 Update 26 installed on your system.

So you better install Java 7 JDK.

Huh? Can you explain the logic behind that conclusion?

The latest version the better it is. Or at least install the required version for JavaFX support.

Mohamed Sanaulla wrote:The latest version the better it is.

I could not disagree much more with this sentiment, I think. Each software release introduces bugs; hopefully less than it fixes, but new ones nonetheless. That's especially true of a big update like from Java 6 to Java 7. Unless there is a compelling reason -which in this case there is not, since a recent Java 6 version is sufficient- upgrading just about anything to a recent release should be approached with caution, and not rushed into.

Or at least install the required version for JavaFX support.

Right. That's an appropriate Java 6 version, not Java 7, which you flat out declared to be "better".

I agree.
But I think while learning, the aspect of "stability" takes a lesser precedence. Its ideal to test with the latest version and if there are bugs- you have got something to report. Thinking on the lines of using a stable version I think using JavaFX 2.0 should itself be not taken up - its more newer and a totally different from its predecessors.

Also there are preview released only so that developers or users use them and report bugs. And I dont think releases would be that unstable that a individual learner would be in trouble upgrading to them.

Being developers I think we shouldn't be thinking more like enterprises searching for stability in what ever we try to use.

There have been lot of cases where people use Beta version of IDEs, tools - so looking at this sentiment we shouldnt be. No matter how good the beta version is.

All these depends on individuals and varies from one individual to another. And these would not be applicable when it comes to an enterprise setup.

As far as introducing new bugs is concerned- lot of bugs gets deferred, bugs which are not release breaking are deferred, but I think the company releasing would be much more concerned about the product's stability than the users using it. And few corner cases get slipped and users encounter them. And its not too late that a patch would be released or may be a fixed version is available for download.

Tim Moores wrote:

Mohamed Sanaulla wrote:The latest version the better it is.

I could not disagree much more with this sentiment, I think. Each software release introduces bugs; hopefully less than it fixes, but new ones nonetheless.

But are we neglecting the new features that the release comes with?

But I think while learning, the aspect of "stability" takes a lesser precedence.

Again, I very much disagree. Especially when learning a stable environment is important. While obviously one cannot avoid the instability of JavaFX 2 when wanting to learn JavaFX 2, one can -and should- avoid other potential sources of instability.

Being developers I think we shouldn't be thinking more like enterprises searching for stability in what ever we try to use.

I'm not talking about what each and every developer should do in all circumstances, I'm talking about the advice you gave to someone who -judging by the type of problem he's having- is not an experienced Java developer. Those are every different circumstances.

But are we neglecting the new features that the release comes with?

No, note the words "unless there is a compelling reason" in my post. There is no compelling reason in this case.

I think I agree and admit that straight away telling something without a supporting reason was not right.

But I am still not being able to understand why I am being pulled up for suggesting to install Java 7. I dont think its that bad OR I dont think its bad. I might have not suggested a latest version had it been something else. And looking at the kind of adoption- people writing books for covering Java 7, people trying out and blogging about its features, I think sitting back and using older version would do no good.
And can you explain why its not stable? I dont see JVM Crashing every time I run some program, I dont see my compiler handing or crashing and I dont see any reason why OP shouldn't try out Java 7. And one can silently use Java 6 features on a Java 7 environment and that doesn't hurt.

Mohamed Sanaulla wrote:And looking at the kind of adoption- people writing books for covering Java 7, people trying out and blogging about its features, I think sitting back and using older version would do no good.

Exactly: It's the people who make a living (or at least a writing) of the latest and greatest that use it. It's very much not the masses, even less so learners. In this situation I'd ask the opposite question: what good does using a newer version do? Cole does not want to delve into Java 7, he wants to run JavaFX 2, for which the version of Java he has installed is sufficient (assuming that the version being run is sufficiently recent - he hasn't posted enough information for us to be sure about that).

I dont see my compiler handing or crashing and I dont see any reason why OP shouldn't try out Java 7.

What you -as an apparently experienced developer- can and should do is different from what a learner should do. Frankly, I get a annoyed when people say "X+1 is better than X" as if that's some kind of universal truth. Sometimes it may be true, but in the context of this topic it ignores the circumstances that make the difference between the versions irrelevant.

Yeah of course, I think Cole actually installed Java 6u29 but it was the runtime, so installing JDK should solve the problem. Glad that we had some discussion around this and might be of some benefit to Cole.

Hi all,

I realized that my JRE version is 1.6.0u29, not JDK. I have installed JDK 7 and Java FX 2.0 SDK together. Everything is fine now.
I am eager to learn new things in Java 7 and JavaFX 2.0.

Have a good day!
Cheer.