Hi,
I cloned carbon-identity[1] and product_is[2] from github. I created IS
pack using fresh code. When I started carbon server using the fresh pack, I
got following exception.

log4j:ERROR Could not instantiate appender named "CARBON_MEMORY".
log4j:ERROR Could not instantiate class
[org.wso2.carbon.logging.service.appender.CarbonMemoryAppender].
java.lang.ClassNotFoundException:
org.wso2.carbon.logging.service.appender.CarbonMemoryAppender
    at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
    at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
    at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
    at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:171)
    at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198)
    at
org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:327)
    at
org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:124)
    at
org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:785)
    at
org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:768)
    at
org.apache.log4j.PropertyConfigurator.parseCatsAndRenderers(PropertyConfigurator.java:672)
    at
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:516)
    at
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:580)
    at
org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)
    at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
    at org.apache.log4j.Logger.getLogger(Logger.java:104)
    at
org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:262)
    at
org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at
org.apache.commons.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1025)
    at
org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:844)
    at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:541)
    at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:292)
    at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:269)
    at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:655)
    at org.wso2.carbon.axis2.internal.Activator.<clinit>(Activator.java:32)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at java.lang.Class.newInstance0(Class.java:357)
    at java.lang.Class.newInstance(Class.java:310)
    at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:167)
    at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:679)
    at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
    at
org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:390)
    at
org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1176)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
    at
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:1)
    at
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
    at
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

Why am I getting this ?

[1] https://github.com/wso2/carbon-identity
[2]. https://github.com/wso2/product-is

Thank you.
-- 
Lakshani Gamage

*Software Engineer*
Mobile : +94 (0) 71 5478184 <%2B94%20%280%29%20773%20451194>
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