I am getting the following error when trying to launch Android Device Monitor from the Tools window in Android Studio on a Mac.
and when I open the log file I find an error report very similar to the other SO questions similar to this, esp this one. However, using sudo did not work for me, although I get similar, though much shorter, error data:
Macs-MBP:tools macuser$ sudo ./monitor
Password:
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/android/archquery/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
./monitor: line 41: /Users/macuser/Library/Android/sdk/tools/lib/monitor-/monitor.app/Contents/MacOS/monitor: No such file or directory
./monitor: line 41: exec: /Users/macuser/Library/Android/sdk/tools/lib/monitor-/monitor.app/Contents/MacOS/monitor: cannot execute: No such file or directory
Backstory: After doing a complete, new Android Studio installation on this laptop (El Capitan) I attempted to launch the monitor from inside the IDE. It complained that running it required Java 1.6. So I installed Java 6. Then when I tried it I got the error message above.
I get the following when I ran from Terminal java_home -V
Matching Java Virtual Machines (2):
1.6.0_65-b14-468, x86_64: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_65-b14-468, i386: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
The contents of the log file are (unfortunately had to cull some because of text entry limitations for post):
!SESSION 2017-03-07 14:46:16.923 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_65
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments: -keyring /Users/macuser/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws cocoa -arch x86_64 -data @noDefault -keyring /Users/macuser/.eclipse_keyring -showlocation
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.397
!MESSAGE Bundle reference:file:org.apache.ant_1.8.3.v201301120609/@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.400
!MESSAGE Bundle reference:file:org.apache.jasper.glassfish_2.2.2.v201205150955.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.401
!MESSAGE Bundle reference:file:org.apache.lucene.core_2.9.1.v201101211721.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.424
!MESSAGE Bundle reference:file:org.eclipse.help.base_3.6.101.v201302041200.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.425
!MESSAGE Bundle reference:file:org.eclipse.help.ui_3.5.201.v20130108-092756.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.425
!MESSAGE Bundle reference:file:org.eclipse.help.webapp_3.6.101.v20130116-182509.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.426
!MESSAGE Bundle reference:file:org.eclipse.jetty.server_8.1.3.v20120522.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.429
!MESSAGE Bundle reference:file:org.eclipse.platform.doc.user_4.2.2.v20130121-200410.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.430
!MESSAGE Bundle reference:file:org.eclipse.team.core_3.6.100.v20120524-0627.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.430
!MESSAGE Bundle reference:file:org.eclipse.team.ui_3.6.201.v20130125-135424.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.431
!MESSAGE Bundle reference:file:org.eclipse.ui.cheatsheets_3.4.200.v20120521-2344.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.432
!MESSAGE Bundle reference:file:org.eclipse.ui.intro_3.4.200.v20120521-2344.jar@4 not found.
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:17.924
!MESSAGE An error occurred while automatically activating bundle com.android.ide.eclipse.monitor (4).
!STACK 0
org.osgi.framework.BundleException: The activator com.android.ide.eclipse.monitor.MonitorPlugin for bundle com.android.ide.eclipse.monitor is invalid
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:172)
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.start(AbstractBundle.java:300)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:469)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:464)
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 org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:340)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1212)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: java.lang.UnsupportedClassVersionError: com/android/prefs/AndroidLocation$AndroidLocationException : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:188)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClassHoldingLock(ClasspathManager.java:632)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:614)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:568)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:492)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:465)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
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 com.android.ide.eclipse.monitor.MonitorPlugin.<clinit>(MonitorPlugin.java:28)
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)
... 33 more
!ENTRY org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.http.jetty_3.0.1.v20121109-203239.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.ssl_[8.0.0,9.0.0).
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.nio_[8.0.0,9.0.0).
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.session_[8.0.0,9.0.0).
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server_[8.0.0,9.0.0).
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.bio_[8.0.0,9.0.0).
!SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.handler_[8.0.0,9.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.ltk.ui.refactoring_3.7.0.v20120523-1543.jar was not resolved.
!SUBENTRY 2 org.eclipse.ltk.ui.refactoring 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.eclipse.team.core_[3.4.100,4.0.0).
!SUBENTRY 2 org.eclipse.ltk.ui.refactoring 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.eclipse.team.ui_[3.4.100,4.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.platform_4.2.2.v201302041200/ was not resolved.
!SUBENTRY 2 org.eclipse.platform 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.eclipse.ui.intro_[3.2.0,4.0.0).
!SUBENTRY 2 org.eclipse.platform 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=JavaSE)(version=1.4))(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.ui.intro.universal_3.2.600.v20120912-155524/ was not resolved.
!SUBENTRY 2 org.eclipse.ui.intro.universal 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.eclipse.ui.intro_[3.4.0,4.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.jsp.jasper_1.0.400.v20120912-130548.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.apache.jasper.servlet_[0.0.0,6.0.0).
!SUBENTRY 2 org.eclipse.equinox.jsp.jasper 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.apache.lucene_2.9.1.v201101211721.jar was not resolved.
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.apache.lucene.core_[2.9.1,3.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.jetty.security_8.1.3.v20120522.jar was not resolved.
!SUBENTRY 2 org.eclipse.jetty.security 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server_[8.1.0,9.0.0).
!SUBENTRY 2 org.eclipse.jetty.security 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing imported package org.eclipse.jetty.server.handler_[8.1.0,9.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.apache.lucene.analysis_2.9.1.v201101211721.jar was not resolved.
!SUBENTRY 2 org.apache.lucene.analysis 2 0 2017-03-07 14:46:18.017
!MESSAGE Missing required bundle org.apache.lucene.core_[2.9.1,3.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.017
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.jetty.servlet_8.1.3.v20120522.jar was not resolved.
!SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing imported package org.eclipse.jetty.server.handler_[8.1.0,9.0.0).
!SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing imported package org.eclipse.jetty.server.session_[8.1.0,9.0.0).
!SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing imported package org.eclipse.jetty.server.nio_[8.1.0,9.0.0).
!SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing imported package org.eclipse.jetty.server_[8.1.0,9.0.0).
!SUBENTRY 2 org.eclipse.jetty.servlet 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing imported package org.eclipse.jetty.server.ssl_[8.1.0,9.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.018
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.jsp.jasper.registry_1.0.300.v20120912-130548.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.jsp.jasper.registry 2 0 2017-03-07 14:46:18.018
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!ENTRY org.eclipse.osgi 2 0 2017-03-07 14:46:18.037
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2017-03-07 14:46:18.037
!MESSAGE Bundle org.apache.lucene_2.9.1.v201101211721 [24] was not resolved.
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.037
!MESSAGE Missing required bundle org.apache.lucene.core_[2.9.1,3.0.0).
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.037
!MESSAGE Missing optionally required bundle org.apache.lucene.analysis_[2.9.1,3.0.0).
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.037
!MESSAGE Missing optionally required bundle org.apache.lucene.highlighter_[2.9.1,3.0.0).
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.037
!MESSAGE Missing optionally required bundle org.apache.lucene.memory_[2.9.1,3.0.0).
!SUBENTRY 2 org.apache.lucene 2 0 2017-03-07 14:46:18.037
!MESSAGE Missing optionally required bundle org.apache.lucene.queries_[2.9.1,3.0.0).
. . .
!ENTRY org.eclipse.osgi 4 0 2017-03-07 14:46:18.041
!MESSAGE Application error
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in com.android.ide.eclipse.monitor was unable to load class com.android.ide.eclipse.monitor.MonitorApplication.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:176)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: org.osgi.framework.BundleException: The activator com.android.ide.eclipse.monitor.MonitorPlugin for bundle com.android.ide.eclipse.monitor is invalid
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:172)
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.start(AbstractBundle.java:300)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
... 27 more
Caused by: java.lang.UnsupportedClassVersionError: com/android/prefs/AndroidLocation$AndroidLocationException : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:188)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClassHoldingLock(ClasspathManager.java:632)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:614)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:568)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:492)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:465)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
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 com.android.ide.eclipse.monitor.MonitorPlugin.<clinit>(MonitorPlugin.java:28)
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)
... 33 more
James Nelson
I'm having the same issue. Based on the log file, the new version of Android Studio requires Java 8 "Unsupported major.minor version 52.0": Unsupported major.minor version 52.0
I'm running Linux, I currently have java8 installed so I just needed to use:
update-alternatives --config java
and
update-alternatives --config javac
then everything worked.
It looks as though you're using a Mac, so you may or may not need to do the following after installing Java 8: Installed Java 7 on Mac OS X but Terminal is still using version 6
Info from Unsupported major.minor version 52.0 source: wikipedia
- J2SE 8 = 52
- J2SE 7 = 51
- J2SE 6.0 = 50
- J2SE 5.0 = 49
- JDK 1.4 = 48
- JDK 1.3 = 47
- JDK 1.2 = 46
- JDK 1.1 = 45
Confusingly I didn't have Java 8 installed in a shared location (only the bundled version in Android Studio). Installing it through homebrew solved my problem.
brew cask install java
$ java -version
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
Android Studio comes with built-in Java 1.8, so it wasn't a problem when you are developing android app. But when you launch Android Device Monitor, it uses external java compiler that run on your OS. If you have preinstalled Java before, it won't be a problem. Otherwise, you will face the same problem.
I tried to set JAVA_HOME path to java packed in Android Studio. It does not work, probably because it is openjdk version.
My solution was to download Java JDK 1.8 from Oracle and install in my computer.
If you open the particular error message you will see the first few line of the error message as below.
!SESSION 2017-12-20 08:17:02.597 -----------------------------------------------
eclipse.buildId=unknown
java.version=9.0.1
java.vendor=Oracle Corporation
This is what I got. I have installed both java 8 and 9 in my mac and made java 8 as the default. According to the error message java virtual device took java 9 but its need 8. Thats where the probelm happened.So I uninstalled the java 9 from my machine then its started to work fine.
The above answer didn't work for me. I'm using JAVA8, both the Android JAVA_HOME and /usr/bin/java. What is weirder for me is my tools/ directory is missing the uiautomationviewer tool as well. So it made me wonder if something went wrong during the installation.
What I ended up doing was downloading an older verion of SDK-tools (I followed instructions here), and replaced the entire sdk/tools folder. And it worked....
Same problem was observed on: macOS Sierra 10.12.6 Android Studio 3.0.1
Was solved by: Uninstalling Java SE Development Kit 8u152 And Installing Java SE Development Kit 8u151 from: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Try to right click sdk/tools/monitor.bat and Click "run as administrator"
来源：https://stackoverflow.com/questions/42661578/android-device-monitor-will-not-launch-either-from-android-studio-or-from-termi