java - Half the widgets in Android Studio not working -

i've been learning android development , first noticed check boxes not work, played around bit , noticed half widgets not work. straying 'drag , drop' interface , writing code doesn't work. i've tried uninstalling , reinstalling , still same error:

exception raised during rendering: binary xml file line #-1: error inflating class android.widget.checkbox

details:

java.lang.nosuchmethoderror: android.graphics.drawable.vectordrawable_delegate.ncreatetreefromcopy(jj)j     @ android.graphics.drawable.vectordrawable.ncreatetreefromcopy(vectordrawable.java)     @ android.graphics.drawable.vectordrawable.access$400(vectordrawable.java:204)     @ android.graphics.drawable.vectordrawable$vectordrawablestate.createnativetreefromcopy(vectordrawable.java:837)     @ android.graphics.drawable.vectordrawable$vectordrawablestate.<init>(vectordrawable.java:812)     @ android.graphics.drawable.vectordrawable.mutate(vectordrawable.java:268)     @ android.graphics.drawable.drawablecontainer$drawablecontainerstate.addchild(drawablecontainer.java:817)     @ android.graphics.drawable.statelistdrawable$stateliststate.addstateset(statelistdrawable.java:329)     @ android.graphics.drawable.animatedstatelistdrawable$animatedstateliststate.addstateset(animatedstatelistdrawable.java:602)     @ android.graphics.drawable.animatedstatelistdrawable.parseitem(animatedstatelistdrawable.java:525)     @ android.graphics.drawable.animatedstatelistdrawable.inflatechildelements(animatedstatelistdrawable.java:453)     @ android.graphics.drawable.animatedstatelistdrawable.inflate(animatedstatelistdrawable.java:385)     @ android.graphics.drawable.drawableinflater.inflatefromxml(drawableinflater.java:130)     @ android.graphics.drawable.drawable.createfromxmlinner(drawable.java:1224)     @ android.graphics.drawable.drawable.createfromxml(drawable.java:1197)     @ com.android.layoutlib.bridge.impl.resourcehelper.getdrawable(resourcehelper.java:315)     @ android.content.res.bridgetypedarray.getdrawable(bridgetypedarray.java:681)     @ android.widget.compoundbutton.<init>(compoundbutton.java:89)     @ android.widget.checkbox.<init>(checkbox.java:70)     @ android.widget.checkbox.<init>(checkbox.java:66)     @ android.widget.checkbox.<init>(checkbox.java:62)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance0(native method)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance(nativeconstructoraccessorimpl.java:62)     @ sun.reflect.delegatingconstructoraccessorimpl.newinstance(delegatingconstructoraccessorimpl.java:45)     @ java.lang.reflect.constructor.newinstance(constructor.java:423)     @ android.view.layoutinflater.createview(layoutinflater.java:645)     @ android.view.bridgeinflater.oncreateview(bridgeinflater.java:107)     @ android.view.layoutinflater.oncreateview(layoutinflater.java:717)     @ android.view.layoutinflater.createviewfromtag(layoutinflater.java:785)     @ android.view.bridgeinflater.createviewfromtag(bridgeinflater.java:149)     @ android.view.layoutinflater.createviewfromtag(layoutinflater.java:727)     @ android.view.layoutinflater.rinflate_original(layoutinflater.java:858)     @ android.view.layoutinflater_delegate.rinflate(layoutinflater_delegate.java:70)     @ android.view.layoutinflater.rinflate(layoutinflater.java:834)     @ android.view.layoutinflater.rinflatechildren(layoutinflater.java:821)     @ android.view.layoutinflater.rinflate_original(layoutinflater.java:861)     @ android.view.layoutinflater_delegate.rinflate(layoutinflater_delegate.java:70)     @ android.view.layoutinflater.rinflate(layoutinflater.java:834)     @ android.view.layoutinflater.rinflatechildren(layoutinflater.java:821)     @ android.view.layoutinflater.inflate(layoutinflater.java:518)     @ android.view.layoutinflater.inflate(layoutinflater.java:397)     @ com.android.layoutlib.bridge.impl.rendersessionimpl.inflate(rendersessionimpl.java:317)     @ com.android.layoutlib.bridge.bridge.createsession(bridge.java:429)     @ com.android.ide.common.rendering.layoutlibrary.createsession(layoutlibrary.java:350)     @ com.android.tools.idea.rendering.rendertask$2.compute(rendertask.java:520)     @ com.android.tools.idea.rendering.rendertask$2.compute(rendertask.java:508)     @ com.intellij.openapi.application.impl.applicationimpl.runreadaction(applicationimpl.java:967)     @ com.android.tools.idea.rendering.rendertask.createrendersession(rendertask.java:508)     @ com.android.tools.idea.rendering.rendertask.access$600(rendertask.java:75)     @ com.android.tools.idea.rendering.rendertask$3.call(rendertask.java:620)     @ com.android.tools.idea.rendering.rendertask$3.call(rendertask.java:617)     @ com.android.tools.idea.rendering.renderservice.runrenderaction(renderservice.java:371)     @ com.android.tools.idea.rendering.rendertask.render(rendertask.java:617)     @ com.android.tools.idea.rendering.rendertask.render(rendertask.java:639)     @ com.intellij.android.designer.designsurface.androiddesignereditorpanel$7.run(androiddesignereditorpanel.java:519)     @ com.intellij.util.ui.update.mergingupdatequeue.execute(mergingupdatequeue.java:337)     @ com.intellij.util.ui.update.mergingupdatequeue.execute(mergingupdatequeue.java:327)     @ com.intellij.util.ui.update.mergingupdatequeue$3.run(mergingupdatequeue.java:271)     @ com.intellij.util.ui.update.mergingupdatequeue.flush(mergingupdatequeue.java:286)     @ com.intellij.util.ui.update.mergingupdatequeue.flush(mergingupdatequeue.java:244)     @ com.intellij.util.ui.update.mergingupdatequeue.run(mergingupdatequeue.java:234)     @ com.intellij.util.concurrency.queueprocessor.runsafely(queueprocessor.java:238)     @ com.intellij.util.alarm$request$1.run(alarm.java:352)     @ java.util.concurrent.executors$runnableadapter.call(executors.java:511)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)     @ java.lang.thread.run(thread.java:745)