Jack,

maven-jetty-plugin belongs to the group org.mortbay.jetty, not 
org.apache.maven.plugins. This makes me suspect that your jetty plugin 
isn't configured properly.

A minimal jetty plugin configuration would look like this:

       <plugin>
         <groupId>org.mortbay.jetty</groupId>
         <artifactId>maven-jetty-plugin</artifactId>
         <configuration>
           <contextPath>/</contextPath>
         </configuration>
       </plugin>

Could you please ensure this config under build -> plugin section in 
your pom.xml and retry?

Cheers, Indrajit



On 30/09/09 10:09 AM, jlist9 wrote:
>
> I just tried it on another computer and got exactly the same error when
> running (below). I think something is broken. I checked the mvn output
> in the first run to create helloworld project and didn't see any mentioning
> of jetty...
>
> D:\Java\liftweb\work>mvn jetty:run
> [INFO] Scanning for projects...
> [INFO] Searching repository for plugin with prefix: 'jetty'.
> [INFO] artifact org.apache.maven.plugins:maven-jetty-plugin: checking
> for updates from central
> [INFO] 
> ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] The plugin 'org.apache.maven.plugins:maven-jetty-plugin' does
> not exist or no valid version c
> ould be found
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] For more information, run Maven with the -e switch
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Total time:<  1 second
> [INFO] Finished at: Tue Sep 29 21:16:31 PDT 2009
> [INFO] Final Memory: 1M/4M
> [INFO] 
> ------------------------------------------------------------------------
>
> On Tue, Sep 29, 2009 at 8:59 PM, Naftoli Gugenheim<naftoli...@gmail.com>  
> wrote:
>>
>> I had such an issue when it was confused about which version of Jetty. Is 
>> there any more detail? Try running with error details enabled (mvn -help 
>> should tell you how).
>>
>> -------------------------------------
>> jlist9<jli...@gmail.com>  wrote:
>>
>>
>> Yes, I have a network connection. Maven downloaded some other
>> components and the end result was BUILD SUCCESSFUL...
>>
>> On Tue, Sep 29, 2009 at 8:29 PM, Naftoli Gugenheim<naftoli...@gmail.com>  
>> wrote:
>>>
>>> Do you have a network connection? The idea of maven is that it
>>> downloads whatever it's missing.
>>>
>>> On Tue, Sep 29, 2009 at 9:11 PM, jlist9<jli...@gmail.com>  wrote:
>>>>
>>>> Hi,
>>>>
>>>> I'm new to Lift. I'm trying to follow the getting started guide to
>>>> build the first simple
>>>> demo.helloworld project. At the end of Maven command output I see
>>>> "BUILD SUCCESSFUL".
>>>> However, when I run "mvn jetty:run", I get error:
>>>>
>>>> The plugin 'org.apache.maven.plugins:maven-jetty-plugin' does not
>>>> exist or no valid version could be found
>>>>
>>>> I wonder if I need to manually install jetty? If so, is there any
>>>> configuration instructions?
>>>>
>>>> Thanks
>>>> Jack
>>>>
>>>>>
>>>>
>>>
>>>>
>>>
>>
>>
>>
>>>
>>
>
> >

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