App crashes on android L (API v21)

[lovesh]

I cloned your github repo and tried to run MaterialWeather app in android studio and the app crashes on API 21(Android L) with a runtime exception java.lang.RuntimeException: Unable to start activity ComponentInfo{com.survivingwithandroid.materialweather/com.survivingwithandroid.materialweather.WeatherActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. But it works on a lower API like Kitkat.

[GautamDMan]

I think if the application is running on API 21, u may have to update the app compat library.

I am also new to Android. So please correct my mistakes. I am also observing this repo.

--- Original Message ---

From: "Lovesh Harchandani" [email protected]
Sent: 26 November 2014 21:21
To: "survivingwithandroid/Surviving-with-android" [email protected]
Subject: [Surviving-with-android] App crashes on android L (API v21) (#9)

I cloned your github repo and tried to run MaterialWeather app in android studio and the app crashes on API 21(Android L) with a runtime exception java.lang.RuntimeException: Unable to start activity ComponentInfo{com.survivingwithandroid.materialweather/com.survivingwithandroid.materialweather.WeatherActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. But it works on a lower API like Kitkat.

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#9

[lovesh]

How would i update the app compat library. You are already using appcompatv7-21 which is ok. I am new to android too. Still to build my first non Hello World app.

[GautamDMan]

Ok. In that case, understanding gradle and dependency resolution will be helpful for you. Google gradle for Android l.. That would be a good starting point. Make sure that the dependency is { compile 'com. Android. Support:appcompat-v7:21.0.0'}

--- Original Message ---

From: "Lovesh Harchandani" [email protected]
Sent: 26 November 2014 22:34
To: "survivingwithandroid/Surviving-with-android" [email protected]
Cc: "Gautam Divekar" [email protected]
Subject: Re: [Surviving-with-android] App crashes on android L (API v21) (#9)

How would i update the app compat library. You are already using appcompatv7-21 which is ok. I am new to android too. Still to build my first non Hello World app.

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#9 (comment)

[lovesh]

The dependency is 'com.android.support:appcompat-v7:21.0.0'. U dont need to change it. I think if you are using the action bar and app compat library 21 you dont have to use android:Theme.Material.Light in values-v21/styles.xml

[GautamDMan]

Yes. Make sure that compileSDKVersion is 21 and buildtoolversion is 21.0.*

Will that be helpful? If the project is recompiled for the correct version of SDK it should refer to the correct appcompat-v library as well.

--- Original Message ---

From: "Lovesh Harchandani" [email protected]
Sent: 26 November 2014 23:04
To: "survivingwithandroid/Surviving-with-android" [email protected]
Cc: "Gautam Divekar" [email protected]
Subject: Re: [Surviving-with-android] App crashes on android L (API v21) (#9)

The dependency is 'com.android.support:appcompat-v7:21.0.0'. U dont need to change it. I think if you are using the action bar and app compat library 21 you dont have to use 'MaterialTheme' in values-v21/styles.xml

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#9 (comment)

[lovesh]

I havent made any change to your app. Its as it is on github. I cloned it a few hours ago. So the buildtoolsversion and compileSDKVersion is same as in github

[lovesh]

@GautamDMan Have a look here http://stackoverflow.com/questions/27155867/using-theme-material-light-darkactionbar-with-theme-appcompat-light-darkactionba

[GautamDMan]

Hi,

I will take a look into it and get back at you as soon as possible. Fyi, I am not the author of the surviving_with_android. I am a watcher for the repo. But I will check it out and reply.

--- Original Message ---

From: "Lovesh Harchandani" [email protected]
Sent: 27 November 2014 01:11
To: "survivingwithandroid/Surviving-with-android" [email protected]
Cc: "Gautam Divekar" [email protected]
Subject: Re: [Surviving-with-android] App crashes on android L (API v21) (#9)

@GautamDMan Have a look here http://stackoverflow.com/questions/27155867/using-theme-material-light-darkactionbar-with-theme-appcompat-light-darkactionba

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#9 (comment)

[survivingwithandroid]

@lovesh I will check the App i will let u know if i find something wrong updating the repo. Thx for your support!