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I've got the same bug with Android Studio 3.1 (Build #AI-173.4670197). when i disabled Profiling it resolve the problem.

Yes, that's true, see the linked stackoverflow post...

I've got the same Bug with Android Studio 3.1 with a CAT 30 phone (and emulator, nexus 5x api 26)

Same issue on LG G4 (6.0) after update to Android Studio 3.1

Temporarily resolved by disabling advanced profiling.

Thanks for the bug. Can I get more details about the type of application you were running when you encountered this issue? Was it a sample app? a new app? or something more complex. I suspect this has to do with keyboard input however I am unable to repo the issue with any of the samples, or new applications available.

I will continue attempting to repo on various emulators with APIs 24+.

I encountered the issue on a HTC One Mini on a complex app.
The issue occurred when clicking into an TextInputEditText, the keyboard came up and the error occurred. The corresponding piece of xml looks like:

'
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    android:focusable="true"
    android:focusableInTouchMode="true">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <View
            android:id="@+id/create_profile_step_indicator"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_centerInParent="true"/>

        <TextView
            android:id="@+id/create_profile_title_textview"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_step_indicator"/>

        <TextView
            android:id="@+id/create_profile_message_textview"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_title_textview"/>

        <android.support.design.widget.TextInputLayout
            android:id="@+id/create_profile_email_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_message_textview">

            <AutoCompleteTextView
                android:id="@+id/create_profile_email_edit_text"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:imeOptions="actionNext"
                android:inputType="textEmailAddress"/>

        </android.support.design.widget.TextInputLayout>

        <android.support.design.widget.TextInputLayout
            android:id="@+id/create_profile_confirm_email_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_email_layout">

            <android.support.design.widget.TextInputEditText
                android:id="@+id/create_profile_confirm_email_edit_text"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:imeOptions="actionNext"
                android:inputType="textEmailAddress"/>
        </android.support.design.widget.TextInputLayout>


        <TextView
            android:id="@+id/create_profile_accept_terms_text_view"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_confirm_email_layout"
            android:layout_marginEnd="@dimen/activity_horizontal_margin"
            android:layout_marginStart="@dimen/activity_horizontal_margin"
            android:layout_marginTop="@dimen/activity_vertical_margin"/>

        <de.teambank.fymio.widget.LoadingIndicatorButton
            android:id="@+id/create_profile_continue_button"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/create_profile_accept_terms_text_view"
            android:enabled="false"/>

    </RelativeLayout>
</ScrollView>
'

Thanks for all the additional information. I was able to repo the issue and validate a fix. I will work to this this fix out in a 3.1 update.

Josh

nice, thanks!

Same issue on Nexus 5 (6.0) after update to Android Studio 3.1

Temporarily resolved by disabling advanced profiling.

Same issue whith two Motorola devices (G1 and G3) with Android 6 after update to Android Studio 3.1

Temporarily resolved by disabling advanced profiling.

Maader cood kanker Pola toi

The fix is checked in an set to go out in the 3.1 beta 1.

same issue on Samsung Note pro 12,

Thanks everyone for the bug reports. Android Studio 3.1.1 was released earlier today and includes a fix for this issue. Please let us know if you continue to see issues after upgrading.

I'm running an application on a Nexus 5 with Android Studio 3.1.1, but encounter a crash similar to this (when advanced profiling is enabled). It seems kind of random when it happens but it's either when I see choices of a Spinner, enter a EditText or move on to the next activity (that contains a webview) from the view with the spinner and EditText. I don't know if it's the same issue or a new one, but here's the Logcat report (with my application id replaced by "mycompany.myapp":

04-16 16:26:41.079 15619-15619/com.mycompany.myapp E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.mycompany.myapp, PID: 15619
    java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.view.inputmethod.InputConnection.finishComposingText()' on a null object reference
        at android.view.inputmethod.InputConnectionWrapper.finishComposingText(InputConnectionWrapper.java:78)
        at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:362)
        at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5417)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Same issue with android 3.1.1 and Advance Profilling enabled. My application has several fragment sometimes when transition from one to another the app crash ..

04-17 19:27:37.272 10911-10911/com.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.app, PID: 10911
    java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.view.inputmethod.InputConnection.finishComposingText()' on a null object reference
        at android.view.inputmethod.InputConnectionWrapper.finishComposingText(InputConnectionWrapper.java:78)
        at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:362)
        at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5444)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:682)

To add to my comment, I am using a physical tablet with android 6.0..

Hi! I can confirm this bug keeps happening in latest public released version: Android Studio 3.1.2 (Build #AI-173.4720617, built on April 13, 2018), while Advanced Profiling is enabled, when running on a -fully updated- physical device Sony Xperia Z3, with Android 6.0.1:
   java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.view.inputmethod.InputConnection.finishComposingText()' on a null object reference
        at android.view.inputmethod.InputConnectionWrapper.finishComposingText(InputConnectionWrapper.java:78)
        at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:362)
        at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:224)
        at android.app.ActivityThread.main(ActivityThread.java:5526)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Today I finally could download and test canary 18. I can confirm this bug is now fixed in this version. Thank you!