Re: java.lang.UnsupportedClassVersionError: Bad version number in.class file
Re: java.lang.UnsupportedClassVersionError: Bad version number in.class file
- Subject: Re: java.lang.UnsupportedClassVersionError: Bad version number in.class file
- From: Chuck Hill <email@hidden>
- Date: Mon, 14 Jun 2010 07:38:04 -0700
Also try just deleting the errors in the Problem view, then clean and
build. Sometimes these errors seem to get "stuck" in Eclipse after
you have fixed the problem.
Chuck
On Jun 14, 2010, at 6:55 AM, Kantala, Dmytro R. wrote:
Were you able to resolve by switching compiler version?
I am running into the same problem. I have eclipse configured to
compile for 1.5.
Build machine
Snow Leopard: 10.6.0
Eclipse: 3.4.2
Wolips: 3.4.5830
WO: 5.4.3
Server
Leopard: 10.5.8
WO: 5.4.3
Thanks,
DK
-----Original Message-----
From: webobjects-dev-bounces+dkantala=email@hidden
on behalf of Jake Bearkley
Sent: Mon 6/14/2010 9:01 AM
To: Farrukh Ijaz
Cc: email@hidden
Subject: Re: java.lang.UnsupportedClassVersionError: Bad version
number in.class file
Sorry,
user error, I was trying to start the wrong application!! doh!
I have been working on this too long and need sleep!
thanks for your patience
Bearko
On Mon, Jun 14, 2010 at 10:05 PM, Jake Bearkley <email@hidden>
wrote:
> Thanks, but as I have said, I have changed the preference and I
still get
> the error.
>
> What else can I do to eliminate the error?
>
> I use no java 1.6 code. The application is currently being
developed on a
> Leopard environment with java 1.5 and I am trying to set up a new
> development machine.
>
> Thanks in Advance
> Bearko
>
>
> On Mon, Jun 14, 2010 at 9:43 PM, Farrukh Ijaz <
> email@hidden> wrote:
>
>> Thats fine! JDK 1.6 compiler can generate code compatible to JDK
1.5. The
>> message is for the target system. I've the same scenario where I
have
>> applications in production running on PPC platform 1.5 but I've
on my
>> Macbook 1.6.
>>
>> However you may find error if you're having code of 1.6 which is
not
>> compatible to 1.5. In that case you need to change it with 1.5
compatible
>> code. But chances are very rare you get an error.
>>
>> Farrukh
>>
>> On 2010-06-14, at 3:01 PM, Jake Bearkley wrote:
>>
>> Hi All,
>>
>> I have done that :) but I still get the error
>>
>> when I select 1.5 as the compiler compliance level, a message
appears at
>> the bottom
>> "When selecting 1.5 compliance, make sure to have a compatible JRE
>> installed and activated (currently 1.6)"
>>
>> but I can not install and activate 1.5 JRE because the directory
is dimmed
>> when I try and add the JRE!!!
>>
>>
>> Cheers
>> Bearko
>>
>>
>>
>> On Mon, Jun 14, 2010 at 9:24 PM, Farrukh Ijaz <
>> email@hidden> wrote:
>>
>>> Eclipse > Preferences > Java > Compiler
>>>
>>> Set it to Java 1.5 before compiling.
>>>
>>> You can do the similar setup per project.
>>>
>>> Farrukh
>>>
>>> On 2010-06-14, at 2:51 PM, Jake Bearkley wrote:
>>>
>>> > HI All,
>>> >
>>> > I am trying to build an application on Snow Leopard with Java
1.6 and
>>> run on a Leopard server with Java 1.5
>>> >
>>> > Can someone give me guidance on how to do this.
>>> >
>>> > Java 1.5 is a symbolic link to 1.6 on the file system
>>> >
>>> > Within eclipse I have attempted to set the Workspace settings
to use
>>> 1.5, to do this I also need to set the System JRE.
>>> >
>>> > I am unable to install JRE for 1.5, when I try to install it,
I am
>>> unable to select the 1.5 directory as it is dimmed.
>>> >
>>> > can anyone enlighten me?
>>> >
>>> > Thanks in advance
>>> > Bearko
>>> >
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>>
>>
>
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