Using version 1.0.0-alpha7 of the constraint library, which is obsolete

Question

I'm starting using Android Studio 2.2 and trying to play with ConstraintLayout but when I let android studio add it automatically it showed me that error

Using version 1.0.0-alpha7 of the constraint library, which is obsolete

when I try to upgrade it using quick fix I get that error

Error:Could not find com.android.support.constraint:constraint-layout:1.0.0-alpha8.

I think this is a bug in Android Studio. What should I do to fix it?

my current solution is to suppress the error.

What version of the Android Plugin for Gradle are you using, from your top-level `build.gradle` file? Have you downloaded the `ConstraintLayout` bits in the SDK Manager? — CommonsWare, Sep 22 '16 at 13:17
thanks, this was my problem, I was thinking gradle will download it like any other library, and what's more confusing is that I need to use the new SDK Manager. — humazed, Sep 22 '16 at 17:17
My understanding was that Gradle *was* going to be able to download the `ConstraintLayout` artifacts automatically as needed. Perhaps that is being held off until `ConstraintLayout` is fully released, rather than being in an alpha state. — CommonsWare, Sep 22 '16 at 17:21
Please look at that [answer](http://stackoverflow.com/a/40245159/4260491). Maybe will help you! ;) — BVantur, Oct 25 '16 at 16:38

score 18 · Answer 1 · edited Oct 15 '16 at 16:46

18

File - Settings - Appearance & Behavior - System Settings - Android SDK

Remember choose "show detail". You should see the latest version of Constraint Layout.

edited Oct 15 '16 at 16:46

TmTron

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answered Oct 01 '16 at 13:03

guo

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This is the first time I find this window helpful, I still use the old one. Thanks guo that solved my problem =) – JustADev Oct 03 '16 at 06:09
Note: on Ubuntu you must start Android Studio as root, otherwise the Android SDK menu entry is not visible – TmTron Oct 15 '16 at 16:17
I even didn't know there is such an option :( Thanks Guo – Hesam Oct 15 '16 at 22:01
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@Hesam You need to check the box on the right bottom "Show Package Details" – Jessica Zeng Mar 28 '17 at 23:48

score 10 · Accepted Answer · answered Sep 22 '16 at 17:16

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You need to install ConstraintLayout for Android inside Support Repository package on SDK Tools category of SDK Manager.

answered Sep 22 '16 at 17:16

simplebe

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Yeah sure @humazed, I answered it in more details for those weren't able to find 'em. – simplebe Sep 22 '16 at 18:07

score 2 · Answer 3 · answered Apr 12 '17 at 06:25

You are getting this warning because you are using older version of constraint layout while you have newer version available. Go to your sdk manager->sdk tools->Support Repository->ConstraintLayout For Android and then tick the Show Package Details checkbox to find the available versions of constraint layout and install the newest version and update your build.gradle(App Level).

Up until now the newest version is constraint-layout:1.0.2 so use this.

Using version 1.0.0-alpha7 of the constraint library, which is obsolete

3 Answers3