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Installed with Error : Build path specifies execution env J2SE-1.4 [message #1708973]

Wed, 23 September 2015 05:02

Arthur Chan

Messages: 44
Registered: September 2015

Member

I have Java 8 (build 1.8.0-60) installed on Windows 7 Prof sp1 laptop
.
I have just downloaded Eclipse Java EE IDE for Web Developers, Mars release 4.5.0
When Eclipse starts up, it throws this error:
Build path specifies execution environment J2SE-1.4. There are no JREs installed in the workspace that are strictly compatible with this environment.

Version incompatibility?
Need to install a JRE version for Eclipse?
If so, which version?
I modified the workspace directory to point to my personal JAVA directory, is that the problem?

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709048 is a reply to message #1708973]

Wed, 23 September 2015 14:33

Russell Bateman

Messages: 3798
Registered: July 2009
Location: Provo, Utah, USA

Senior Member

On 09/23/2015 05:31 AM, Arthur Chan wrote:
> I have Java 8 (build 1.8.0-60) installed on Windows 7 Prof sp1 laptop

Is there a question in here?

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709058 is a reply to message #1709048]

Wed, 23 September 2015 15:42

Arthur Chan

Messages: 44
Registered: September 2015

Member

No, it's not a question.
I am providing info of my dev-envmt to help debug the error Eclipse threw on startup.
I don't recall specifying J2SE 1.4 in the build path.

Do I need a JRE version in Eclipe's \workspace ?

Thx.

[Updated on: Wed, 23 September 2015 15:45]

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709061 is a reply to message #1709058]

Wed, 23 September 2015 15:46

Eric Rizzo

Messages: 3070
Registered: July 2009

Senior Member

It's just a warning. Google it, you'll see what it means and how to resolve it.

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709070 is a reply to message #1709061]

Wed, 23 September 2015 17:54

Arthur Chan

Messages: 44
Registered: September 2015

Member

Eclipse sees it as an error, not a warning.

Not quite understanding what Eclipse wants.

After download and install, I right clicked on org.eclipse.ui.examples.javaeditor and set these properties:
Properties -> Java Compiler -> Enable project specific settings
-> JDK Compliance level=1.4
-> .class file compatibilty = 1.4
-> source compatibilty = 1.4
-> rebuild

Errors (1 item) : The JRE container on the classpath is not a perfect match to the 'J2SE-1.4'

Tried several of the suggestions from Google ...

What is a maven project?

[Updated on: Wed, 23 September 2015 17:57]

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709143 is a reply to message #1709070]

Thu, 24 September 2015 12:59

Nitin Dahyabhai

Messages: 4442
Registered: July 2009

Senior Member

Arthur Chan wrote on Wed, 23 September 2015 13:54

Errors (1 item) : The JRE container on the classpath is not a perfect match to the 'J2SE-1.4'

Which JRE is on the project's Java Build Path?

_
Nitin Dahyabhai
Eclipse Web Tools Platform

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709153 is a reply to message #1709143]

Thu, 24 September 2015 13:28

Arthur Chan

Messages: 44
Registered: September 2015

Member

Build
c:\ javac -version -> 1.7.0_40

Runtime Env
c:\ java -version -> 1.8.0_60 ( installed this latest update last week )

Is there a tutorial for Eclipse?

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709157 is a reply to message #1709153]

Thu, 24 September 2015 13:38

Russell Bateman

Messages: 3798
Registered: July 2009
Location: Provo, Utah, USA

Senior Member

On 09/24/2015 07:28 AM, Arthur Chan wrote:
> Build c:\ javac -version -> 1.7.0_40
>
> Runtime Env c:\ java -version -> 1.8.0_60 ( installed this latest
> update last week )
>
> Is there a tutorial for Eclipse?

The best ones I've seen, beside those Eclipse offers itself, are at
http://www.vogella.de.

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709203 is a reply to message #1709157]

Thu, 24 September 2015 20:47

Arthur Chan

Messages: 44
Registered: September 2015

Member

@Bateman Thx.

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Re: Installed with Error : Build path specifies execution env J2SE-1.4 [message #1709205 is a reply to message #1709203]

Thu, 24 September 2015 21:21

Arthur Chan

Messages: 44
Registered: September 2015

Member

Dear Moderator

I think we can close this thread now, my eclipse is up and running.

For newbies like me, on the top ribbon, click HELP -> Welcome, there's trove of info there to help get me started and suddenly, eclipse doesn't look so daunting anymore.

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