- Right click on your project
- navigate to properties
- go to java build path (or class path) I think it's third of 4th
option on left hand navigation panel
- ensure that the source of every src/main/java and src/test/java is
on the project build path or else eclispe doesn't know where to find
the classes.

This should be done automatically when you make the initial code
import, however I cannot vouch for every Eclipse distribution to best
to always manually check

hth

Lewis


On Mon, Jul 2, 2012 at 9:12 AM, praful <[email protected]> wrote:
> This is the error that i am getting when i run the project.
>
> *     Exception in thread "main" java.lang.Error: Unresolved compilation **
> problems:
>     String cannot be resolved to a type
>     Exception cannot be resolved to a type
>     System cannot be resolved
>     at org.apache.nutch.crawl.Crawl.**main(Crawl.java:53)*
>
>
> As i didnt understood the point No 3 of section  *"Establish the Eclipse
> environment for Nutch "*, so i skipped that point which i guess was
> essential.
> Can you please help me understand that point which says "In additon, we
> must maunally add *EVERY* individual plugin src/java and src/test folder,
> although this takes some time it is absolutely essential that this is done."
>
> I guess the problem lies within this only.
> Please help me. I am stuck up with this from past 3-4 days which makes me
> more frustrating as the time goes by.
>
> Thanks
> Regards
> Praful Bagai
>
>
> On Mon, Jul 2, 2012 at 12:22 AM, Alexander Aristov [via Lucene] <
> [email protected]> wrote:
>
>> I would check build path if it has some issues.
>>
>> Then did you set up plugins folder according to the article? I use
>> absolute
>> path to get rid of possible mistaces.
>>
>> What about error messages? Do you have some? Sometimes I experienced
>> problem when eclispe didn't compile when I had errors in xml files.
>>
>> Where do your Eclipse compiled classes go to? THey should go to a separate
>> folder, not ant folder. e.g. classes
>>
>> Best Regards
>> Alexander Aristov
>>
>>
>> On 30 June 2012 20:39, praful <[hidden 
>> email]<http://user/SendEmail.jtp?type=node&node=3992362&i=0>>
>> wrote:
>>
>> > Hi
>> > I am running Nutch in Eclipse.
>> > I followed the steps using this site :
>> > http://wiki.apache.org/nutch/RunNutchInEclipse
>> >
>> > I encountered a problem while running which that says
>> >
>> > /Exception in thread "main" java.lang.Error: Unresolved compilation
>> > problems:
>> > String cannot be resolved to a type
>> > Exception cannot be resolved to a type
>> > System cannot be resolved
>> >
>> > at org.apache.nutch.crawl.Crawl.main(Crawl.java:53)
>> > /
>> > The build was successful.
>> >
>> > I am using nutch 1.4.
>> >
>> > Moreover, I would like to tell that i didnt understood the point 3 of
>> > section *"Establish the Eclipse environment for Nutch"* and skipped it.
>> I
>> > guess the problem lies there only.
>> > Can you please help me as the more I try to resolve it, the more i get
>> > frustrated.Trying it from past 2 days.
>> > It's a humble request please help
>> >
>> > --
>> > View this message in context:
>> > http://lucene.472066.n3.nabble.com/Nutch-Exception-tp3992260.html
>> > Sent from the Nutch - User mailing list archive at Nabble.com.
>> >
>>
>>
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-- 
Lewis

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