No Navigation Editor - Android Studio Canary 15 and 16

Question

I'm racking my brains over this. I'm trying to refactor my app to use the new Navigation Architecture Component in Android Studio Canary 15, all I get when creating the xml file is the following message, the editor never shows up;

I have already uninstalled and re-installed both my installation of Android Studio and Android Studio Canary 15 (residing in both C:\Program Files\Android\Android Studio and C:\Program Files\Android\Android Studio Canary and all related components in the C:\Users\[username]\.AndroidStudio folders.

Any ideas why this isn't working?

EDIT: Ok so there is now an error message, when I disable the Android Support Plugin I get a few more error messages telling me to re-enable plugins!

EDIT 2: I updated to Canary 16 and the issue still remains.

26/05/2018
18:22   Plugin Error
            Problems found loading plugins:
            Plugin "Android Games" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Android NDK Support" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Android APK Support" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Google Developers Samples" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Google Cloud Tools For Android Studio" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Test Recorder" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Firebase Testing" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Google Services" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Firebase Services" was not loaded: required plugin "Android Support" is disabled.
            Plugin "App Links Assistant" was not loaded: required plugin "Android Support" is disabled.
            Plugin "Fire... (show balloon)

18:23   Error Loading Project: Cannot load 3 facets Details...

18:23   Plugins Suggestion
            Plugin supporting features (Run Configuration[Android App], Facet[android, android-gradle]) is currently disabled.
            Enable plugins...
            Ignore Unknown Features

null
java.lang.IllegalStateException
    at com.android.tools.idea.naveditor.scene.decorator.NavSceneDecoratorFactory.<init>(NavSceneDecoratorFactory.kt:39)
    at com.android.tools.idea.naveditor.scene.NavSceneManager.getSceneDecoratorFactory(NavSceneManager.java:510)
    at com.android.tools.idea.common.scene.SceneComponent.<init>(SceneComponent.java:116)
    at com.android.tools.idea.common.scene.SceneManager.createHierarchy(SceneManager.java:164)
    at com.android.tools.idea.naveditor.scene.NavSceneManager.createHierarchy(NavSceneManager.java:265)
    at com.android.tools.idea.common.scene.SceneManager.update(SceneManager.java:121)
    at com.android.tools.idea.naveditor.scene.NavSceneManager.requestRender(NavSceneManager.java:340)
    at com.android.tools.idea.common.surface.DesignSurface.requestRender(DesignSurface.java:1291)
    at com.android.tools.idea.naveditor.surface.NavDesignSurface.layoutContent(NavDesignSurface.java:227)
    at com.android.tools.idea.common.surface.DesignSurface.setScale(DesignSurface.java:730)
    at com.android.tools.idea.common.surface.DesignSurface.setScale(DesignSurface.java:683)
    at com.android.tools.idea.common.surface.DesignSurface.zoom(DesignSurface.java:571)
    at com.android.tools.idea.naveditor.surface.NavDesignSurface.zoom(NavDesignSurface.java:402)
    at com.android.tools.idea.common.surface.DesignSurface.zoom(DesignSurface.java:513)
    at com.android.tools.idea.common.surface.DesignSurface.zoomToFit(DesignSurface.java:631)
    at com.android.tools.idea.naveditor.surface.NavDesignSurface.refreshRoot(NavDesignSurface.java:521)
    at com.android.tools.idea.naveditor.surface.NavDesignSurface.getCurrentNavigation(NavDesignSurface.java:233)
    at com.android.tools.idea.naveditor.scene.NavSceneManager.getRoot(NavSceneManager.java:241)
    at com.android.tools.idea.common.scene.SceneManager.update(SceneManager.java:115)
    at com.android.tools.idea.naveditor.scene.NavSceneManager.requestRender(NavSceneManager.java:340)
    at com.android.tools.idea.common.surface.DesignSurface.requestRender(DesignSurface.java:1291)
    at com.android.tools.idea.naveditor.surface.NavDesignSurface.layoutContent(NavDesignSurface.java:227)
    at com.android.tools.idea.common.surface.DesignSurface.addModel(DesignSurface.java:310)
    at com.android.tools.idea.common.surface.DesignSurface.setModel(DesignSurface.java:368)
    at com.android.tools.idea.common.editor.NlEditorPanel.initNeleModelOnEventDispatchThread(NlEditorPanel.java:162)
    at com.android.tools.idea.common.editor.NlEditorPanel.lambda$null$4(NlEditorPanel.java:149)
    at com.intellij.openapi.project.DumbServiceImpl.lambda$smartInvokeLater$7(DumbServiceImpl.java:430)
    at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:315)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.doRun(LaterInvocator.java:447)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:431)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:415)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
    at java.awt.EventQueue.access$500(EventQueue.java:98)
    at java.awt.EventQueue$3.run(EventQueue.java:715)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:779)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:720)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:395)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Edit 3: My navigation graph 'main_graph.xml' is below;

<?xml version="1.0" encoding="utf-8"?>

<navigation xmlns:android="http://schemas.android.com/apk/res/android">
</navigation>

Answer 1

You have the test helper dependence, try removing it. There's an issue with it and the navigation editor

androidTestImplementation "android.arch.navigation:navigation-testing:$nav_version"

Then hit restart and clean cache.