i installed the latest version of Eclipse (Neon) using the eclipse installer in which i choose **Eclipse for Android Developers**.
I opened a workspace in which there is one project created with an old version of Eclipse (**Android Development Tools**) of a couple of years ago.
When i open Eclipse it prompts the following error:

**No editor descriptor for id com.android.ide.eclipse.editors.manifest.ManifestEditor**

I get this instead of the content of the Manifest file.

Here is the log output:

```
!ENTRY org.eclipse.ui.workbench 4 2 2016-08-17 11:24:38.314
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 1
org.eclipse.core.runtime.CoreException: Executable extension definition for "class" not found.
    at org.eclipse.core.internal.registry.ConfigurationElement.throwException(ConfigurationElement.java:62)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:222)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:291)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:52)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:286)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:53)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2829)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2016-08-17 11:24:38.324
!MESSAGE Executable extension definition for "class" not found.
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2016-08-17 11:24:38.325
!MESSAGE Executable extension definition for "class" not found.

!ENTRY org.eclipse.ui 4 0 2016-08-17 11:24:38.406
!MESSAGE Unable to execute early startup code for the org.eclipse.ui.IStartup extension contributed by the 'org.eclipse.sequoyah.device.framework.wizard' plug-in.
!STACK 1
org.eclipse.core.runtime.CoreException: Executable extension definition for "class" not found.
    at org.eclipse.core.internal.registry.ConfigurationElement.throwException(ConfigurationElement.java:62)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:222)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:291)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:52)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:286)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:53)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2829)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2016-08-17 11:24:38.406
!MESSAGE Executable extension definition for "class" not found.

```

There is no LogCat output due this error:

**Could not create the view: com.android.ide.eclipse.ddms.views.LogCatView**

Do you know how to fix this?