Hi all,

     I am new to geoserver. I followed the installation instruction
from the following link:

     http://docs.geoserver.org/latest/en/user/installation/war.html

     After copying geoserver.war file to my Tomcat 7.0.20/webapps and
restart. I got the following error:

2011-08-26 09:59:20,881 INFO [org.geoserver] - Loaded coverage 'img_sample2'
2011-08-26 09:59:20,944 ERROR [gce.image] - No reader avalaible for this source
org.geotools.data.DataSourceException: No reader avalaible for this source
        at 
org.geotools.gce.image.WorldImageReader.getHRInfo(WorldImageReader.java:293)
        at 
org.geotools.gce.image.WorldImageReader.<init>(WorldImageReader.java:263)
        at 
org.geotools.gce.image.WorldImageFormat.getReader(WorldImageFormat.java:344)
        at 
org.geotools.gce.image.WorldImageFormat.getReader(WorldImageFormat.java:55)
        at 
org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:973)
        at org.geoserver.wms.WMSValidator.validate(WMSValidator.java:44)
        at 
org.geoserver.catalog.impl.CatalogImpl$CatalogValidatorVisitor.visit(CatalogImpl.java:1406)
        at 
org.geoserver.catalog.impl.LayerInfoImpl.accept(LayerInfoImpl.java:170)
        at 
org.geoserver.catalog.impl.CatalogImpl.postValidate(CatalogImpl.java:1357)
        at org.geoserver.catalog.impl.CatalogImpl.validate(CatalogImpl.java:636)
        at org.geoserver.catalog.impl.CatalogImpl.add(CatalogImpl.java:593)
        at 
org.geoserver.config.GeoServerLoader.readCatalog(GeoServerLoader.java:439)
        at 
org.geoserver.config.GeoServerLoader.readCatalog(GeoServerLoader.java:220)
        at 
org.geoserver.config.DefaultGeoServerLoader.loadCatalog(DefaultGeoServerLoader.java:42)
        at 
org.geoserver.config.GeoServerLoader.postProcessBeforeInitialization(GeoServerLoader.java:116)
        at 
org.geoserver.config.GeoServerLoaderProxy.postProcessBeforeInitialization(GeoServerLoaderProxy.java:54)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:350)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1330)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at 
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)
        at 
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
        at 
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:495)
        at 
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:162)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
        at 
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
        at 
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
        at 
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
        at 
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
        at 
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
        at 
org.geoserver.platform.GeoServerContextLoaderListener.contextInitialized(GeoServerContextLoaderListener.java:18)
        at 
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
        at 
org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
        at 
org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)

     Any help appreciated.

Quan C. Huynh

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