Hi!
I am quite new in Magnolia and I am trying to use de imaging module. I am 
follow the documentation 
([url]http://documentation.magnolia-cms.com/modules/imaging.html#Imageoperationchain[/url])
 
I have create the configuration:
[code]
-Imaging
 |
 +-config
    |
    +-generators
        |
        +-operationChain
            |
            +-operations
                  |
                 +-crop
                  |  |
                  |  +-crop        false
                  |  +-height     365
                  |  +-width      365
                 +-outputFormat
                 |  |
                 |  +-formatName   jpg
                 |  +-quality            80
                 +-parameterProviderFactory
                 |  |
                 |  +-class       
info.magnolia.imaging.parameters.ContentParameterProviderFactory
                 +-class          
info.magnolia.imaging.operations.ImageOperationChain
        [/code]
 And now I am trying to access to the url:

http://localhost:8081/<mySite>/.imaging/operationChain/dms/folder/images/featured_image_1.jpg

where I have the images in dms:

folder
 |
+-images
     |
     +-featured_image_1 


But I-m getting the following exception:

[code]SEVERE: Servlet.service() for servlet [default] in context with path 
[/tangent90] threw exception
java.lang.RuntimeException: java.lang.IllegalStateException: Unexpected and 
unhandled exception: No image or output format passed: [img:null, 
outputFormat:info.magnolia.imaging.OutputFormat@275f61c7]
        at 
info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:165)
        at 
info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:61)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:76)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.RangeSupportFilter.doFilter(RangeSupportFilter.java:86)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:60)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.security.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:86)
        at 
info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:61)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:93)
        at 
info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:61)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.MultiChannelFilter.doFilter(MultiChannelFilter.java:83)
        at 
info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:61)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.security.auth.login.LoginFilter.doFilter(LoginFilter.java:93)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.CosMultipartRequestFilter.doFilter(CosMultipartRequestFilter.java:87)
        at 
info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:61)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.ContentTypeFilter.doFilter(ContentTypeFilter.java:102)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:131)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:67)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.SafeDestroyMgnlFilterWrapper.doFilter(SafeDestroyMgnlFilterWrapper.java:108)
        at 
info.magnolia.cms.filters.MgnlFilterDispatcher.doDispatch(MgnlFilterDispatcher.java:67)
        at 
info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:108)
        at 
info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:94)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
        at 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
        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:680)
Caused by: java.lang.IllegalStateException: Unexpected and unhandled exception: 
No image or output format passed: [img:null, 
outputFormat:info.magnolia.imaging.OutputFormat@275f61c7]
        at 
info.magnolia.imaging.caching.CachingImageStreamer.unwrapRuntimeException(CachingImageStreamer.java:243)
        at 
info.magnolia.imaging.caching.CachingImageStreamer.unwrapRuntimeException(CachingImageStreamer.java:240)
        at 
info.magnolia.imaging.caching.CachingImageStreamer.serveImage(CachingImageStreamer.java:139)
        at info.magnolia.imaging.ImagingServlet.doGet(ImagingServlet.java:82)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at 
info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:123)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:85)
        at 
info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:67)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.cms.filters.VirtualUriFilter.doFilter(VirtualUriFilter.java:70)
        at 
info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:91)
        at 
info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:83)
        at 
info.magnolia.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58)
        at 
info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:66)
        at 
info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:153)
        ... 57 more
Caused by: java.lang.IllegalArgumentException: No image or output format 
passed: [img:null, outputFormat:info.magnolia.imaging.OutputFormat@275f61c7]
        at 
info.magnolia.imaging.util.ImageUtil.flattenTransparentImageForOpaqueFormat(ImageUtil.java:58)
        at 
info.magnolia.imaging.DefaultImageStreamer.serveImage(DefaultImageStreamer.java:68)
        at 
info.magnolia.imaging.caching.CachingImageStreamer.generateAndStore(CachingImageStreamer.java:197)
        at 
info.magnolia.imaging.caching.CachingImageStreamer$1.apply(CachingImageStreamer.java:118)
        at 
info.magnolia.imaging.caching.CachingImageStreamer$1.apply(CachingImageStreamer.java:114)
        at 
com.google.common.collect.ComputingConcurrentHashMap$ComputingValueReference.compute(ComputingConcurrentHashMap.java:355)
        at 
com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.compute(ComputingConcurrentHashMap.java:184)
        at 
com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.getOrCompute(ComputingConcurrentHashMap.java:153)
        at 
com.google.common.collect.ComputingConcurrentHashMap.getOrCompute(ComputingConcurrentHashMap.java:69)
        at 
com.google.common.collect.ComputingConcurrentHashMap$ComputingMapAdapter.get(ComputingConcurrentHashMap.java:393)
        at 
info.magnolia.imaging.caching.CachingImageStreamer.serveImage(CachingImageStreamer.java:136)
        ... 80 more[/code]
 

Somebody can help me?

Thanks!

-- 
Context is everything: 
http://forum.magnolia-cms.com/forum/thread.html?threadId=a3ea9cac-e89d-403a-b016-efff7c12b60a


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