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javaexceptionrenderingdesignerandroid-constraintlayout

ConstraintLayout designer rendering exception

After ConstraintLayout upgrade to alpha9 I'm getting onMeasure() error rendering problems in design mode: rendering problem

Details (exception):

java.lang.NoSuchMethodError: android.support.constraint.solver.widgets.ConstraintWidget.immediateConnect(Landroid/support/constraint/solver/widgets/ConstraintAnchor$Type;Landroid/support/constraint/solver/widgets/ConstraintWidget;Landroid/support/constraint/solver/widgets/ConstraintAnchor$Type;II)V at android.support.constraint.ConstraintLayout.setChildrenConstraints(ConstraintLayout.java:555) at android.support.constraint.ConstraintLayout.updateHierarchy(ConstraintLayout.java:468) at android.support.constraint.ConstraintLayout.onMeasure_Original(ConstraintLayout.java:770) at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java) at android.view.View.measure(View.java:19731) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.view.View.measure(View.java:19731) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461) at android.view.View.measure(View.java:19731) at com.android.layoutlib.bridge.impl.RenderSessionImpl.measureView(RenderSessionImpl.java:545) at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:342) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:429) at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:389) at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:548) at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:533) at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:966) at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:533) at com.android.tools.idea.rendering.RenderTask.lambda$inflate$72(RenderTask.java:659) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

If I change back dependency in build.gradle from com.android.support.constraint:constraint-layout:1.0.0-alpha9 to com.android.support.constraint:constraint-layout:1.0.0-alpha8 everything is ok again.

Any tips? alpha9 version broken?

Solution

  • As indicated in the release notes, depending on your platform you might have to restart studio and/or invalidate caches after installing alpha 9 :-/