Android: FloatingActionButton could not be instantiated

Question

I am trying to use Floating Action Button(FAB) in my application. However, when I am declaring the same I get the error:

android.support.design.widget.FloatingActionButton could not be instantiated.

I have added following commands to my gradle file:

compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.android.support:support-v4:23.1.1'

I have also tried with adding following to my style parent:

parent="@style/Theme.AppCompat"

Also tried having my Activity class extend Activity as well as AppCompatActivity.

Am I missing something? Pls. help

Every thing looks fine,to find root cause post your complete code so we will help in better way. — Suhas Bachewar, Feb 03 '16 at 06:29
@IntelliJAmiya: Thanks a lot sir. problem is resolved. I had it as 1.3.0 instead of 1.5.0. You might want to post your solution as an answer to help me mark it as accepted answer. — Ritu Raj, Feb 03 '16 at 06:55

score 2 · Accepted Answer · answered Feb 03 '16 at 06:56

2

Android build system uses the Android Plugin for Gradle to support building Android applications with the Gradle build toolkit. The plugin runs independent of Android Studio so the plugin and the Gradle build system can be updated independently of Android Studio.

For FloatingActionButton requirement

Please update your classpath

  dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'

    }

answered Feb 03 '16 at 06:56

IntelliJ Amiya

74,896
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I have it that way but still get the same error. From console, I have gradle 2.8 – Edgar Sampere Mar 10 '16 at 19:16

score 0 · Answer 2 · answered Feb 03 '16 at 07:06

0

Must have :

compileSdkVersion 23

&

 dependencies {
            classpath 'com.android.tools.build:gradle:1.5.0'

        }

answered Feb 03 '16 at 07:06

Suhas Bachewar

1,230
7
21

Android: FloatingActionButton could not be instantiated

2 Answers2

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