Hello, I'm new on OSGi and I'm training about the examples' tutorial of felix site. During the installation and starting processes of the bundle file of example8 with Service Binder, I have encountered the problem below:
org.osgi.framework.BundleException: Activator start error in bundle [78]. at org.apache.felix.framework.Felix.activateBundle(Felix.java:2276) at org.apache.felix.framework.Felix.startBundle(Felix.java:2144) at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998) at org.apache.felix.gogo.command.Basic.start(Basic.java:739) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137) at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82) at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480) at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406) at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119) at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94) at org.apache.felix.gogo.shell.Console.run(Console.java:62) at org.apache.felix.gogo.shell.Shell.console(Shell.java:203) at org.apache.felix.gogo.shell.Shell.gosh(Shell.java:128) at org.apache.felix.gogo.shell.Shell.sh(Shell.java:178) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137) at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82) at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480) at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406) at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119) at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94) at org.apache.felix.gogo.shell.Console.run(Console.java:62) at org.apache.felix.gogo.shell.Shell.console(Shell.java:203) at org.apache.felix.gogo.shell.Shell.gosh(Shell.java:128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137) at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82) at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480) at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406) at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119) at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94) at org.apache.felix.gogo.shell.Console.run(Console.java:62) at org.apache.felix.gogo.shell.Shell.console(Shell.java:203) at org.apache.felix.gogo.shell.Shell.gosh(Shell.java:128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137) at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82) at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480) at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406) at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119) at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94) at org.apache.felix.gogo.shell.Console.run(Console.java:62) at org.apache.felix.gogo.shell.Shell.console(Shell.java:203) at org.apache.felix.gogo.shell.Shell.gosh(Shell.java:128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137) at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82) at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480) at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406) at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182) at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119) at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94) at org.apache.felix.gogo.shell.Activator.run(Activator.java:75) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NoClassDefFoundError: org/osgi/framework/BundleActivator at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.defineClass(BundleWiringImpl.java:2370) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2154) at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1542) at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.apache.felix.framework.BundleWiringImpl.getClassByDelegation(BundleWiringImpl.java:1415) at org.apache.felix.framework.BundleWiringImpl.searchImports(BundleWiringImpl.java:1595) at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1525) at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.defineClass(BundleWiringImpl.java:2370) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2154) at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1542) at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.apache.felix.framework.BundleWiringImpl.getClassByDelegation(BundleWiringImpl.java:1415) at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4468) at org.apache.felix.framework.Felix.activateBundle(Felix.java:2221) ... 78 more Caused by: java.lang.ClassNotFoundException: org.osgi.framework.BundleActivator not found by [75] at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1574) at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 103 more java.lang.NoClassDefFoundError: org/osgi/framework/BundleActivator Please if you have any solution about how to solve this issue, I will appreciate. 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