I'm trying to create a new list using RecyclerView to convert my existing ListView but problem is I can't find why my app cannot import the RecyclerView. I've just updated my SDK and other tools so I can work with Marshmallow in the future so everything is updated.
What I have in my app build.gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23"
defaultConfig {
applicationId "com.test.recyclerview"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.0'
compile 'com.android.support:design:23.0.0'
compile 'com.android.support:cardview-v7:23.0.0'
compile 'com.android.support:percent:23.0.0'
compile 'com.android.support:recyclerview-v7:23.0.0'
}
and after adding this line on my layout xml I got the error saying The following classes could not be found: -android.support.v7.widget.RecyclerView
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
Downgrading my buildtools and targetSDK version is quite not a good option for me since I only have version 22 and 23 but in case I tried to downgrade my app compat version into 21 it result into this error:
This support library should not use a lower version (21) than the targetSdkVersion (23)
Does it mean that the RecyclerView is removed from app compat 23? or I missed something here?
It appears that something was messed out with my configuration which cause is still unknown. It may be on the IML file or other part but it appears that the libraries are not being imported from the source which is why even after I sync and clean the gradle project the libraries from external source remains the same and still builds successfully.
This may be a stupid question but it's the only thing I can imagine is happening
You said that you had downloaded Marshmallow API but have you downloaded the Android Support Library?
The RecyclerView is part of the support library, not the "normal" SDK
Related
I started a new generic Android project and I'm getting an error in the Design View saying "Android N requires the IDE to be running with Java 1.8 or later".
But earlier Gradle complained: Error:(3, 22) compileSdkVersion android-23 requires compiling with JDK 7 so I installed JDK 7 - 1.7.0_79 and that fixed the Gradle problems. I don't really want to go to JDK 8.
So what is Android N ? My understanding is that it's the "next" or "latest" version of Android, but I don't need that for my work. I just need to support CalendarView and NestedScrollView. Where am I telling it that I need "Android N", and how do I change that?
My Build.Gradle says:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.example.ags.mycalendarviewapp"
minSdkVersion 15
targetSdkVersion 19
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.android.support:support-v4:23.4.0'
}
...
So what is Android N ?
It is the next version of Android, API Level 24. The tasty treat is Nougat.
(no, really, that's the name)
Where am I telling it that I need "Android N", and how do I change that?
If you are getting that in the design view, that's the version of Android that is being used for the preview. It defaults to the latest version whose SDK bits you have installed.
To change it, switch it in the bugdroid drop-down on the right side of the design view toolbar:
I have recently updated android studio which brought me many problems.
whenever I create a new android project the gradle scripts(Module:app) is displaying the below code
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.example.listproject"
minSdkVersion 17
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), `'proguard-rules.pro'`
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.+'
}
here the above compiledsdkversion 23 provides me
Error:Failed to find: com.android.support:appcompat-v7:23.+ Open
File:open.dependency.in.project.structure">Open in Project Structure
dialog
Because before upgrading I had compiledsdkversion as 21 and it does not provide any problem in gradle sync task.
But when I manually modified the compiledsdkversion to 21 it worked correctly.But every time when I create a new project it has been set to 23.Is there any way to make 21 as default or any corrections for compiledsdkversion 23 itself.
I have another doubt before upgradation my restful services projects worked correctly after this upgradation I am facing many problems.
Even HelloWorld application is not running.But if I manually change the compiledsdkversion to 21 everything is fine.Please provide me a solution for making the compiledsdkversion to 21 by default.
> compile 'com.android.support:appcompat-v7:23.+'
The "+" in "v7:23.+" means to take the newest "v7:23" version. If you have no internetconnection this fails.
either reestablish an internetconnection while building or replace the package with a fixed versionnumber that your system has locally cached when there was an internet conntection (i.e. com.android.support:appcompat-v7:23.0.1)
You are using the appcompat (and other support libraries) v23, please compile your project with API 23.
Change in your build.gradle the compileSdkVersion to 23
I'll start from what I want to achieve: building the googlecast-manager example provided here: https://github.com/googlecast/GameManagerSamples
I followed instructions here: https://developers.google.com/cast/docs/android_sender
So first I downloaded from github the project, then with the Android SDK Manager I downloaded Android Support Libraries and Google play Services. Then in my project, I went to "Open Modules Setting->Add" then went to "Android SDK\extras\android\support\v7\appcompat" and added it.
Then first step to ensure it's working is to build it. So I right clicked on appcompat->"Compile Module Appcompat" but it fails with 2 errors:
Error:(20, -1) android-apt-compiler: [appcompat] D:\Android
SDK\extras\android\support\v7\appcompat\res\values-v23\styles_base.xml:20:
error: Error retrieving parent for item: No resource found that
matches the given name 'android:Widget.Material.Button.Colored'.
Error:(19, -1) android-apt-compiler: [appcompat] D:\Android
SDK\extras\android\support\v7\appcompat\res\values-v23\styles_base_text.xml:19:
error: Error retrieving parent for item: No resource found that
matches the given name
'android:TextAppearance.Material.Widget.Button.Inverse'.
Doing the same for Google Play works like a charm.
I've tried to find videos/other similar issues but it's either too complicated or not my problem.
Here is the AndroidManifest.xml of appcompat:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="android.support.v7.appcompat">
<uses-sdk android:minSdkVersion="9"
android:targetSdkVersion="19"/>
<application />
Here is what is installed from the Android SDK Manager:
I also encountered the same problem and now have fixed it. What you just have to do is
Inside your Android Studio
press Shift button two times, a search box will appear type build.gradle
choose build.gradle module:app from the suggestion.
major version of compileSdkVersion and support libraries under dependencies should be same as following code depict.
Inside Eclipse
find build.gradle module:app and do the same.
Note: download and install properly the latest API which is now API 23.
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.0"
defaultConfig {
applicationId "com.example.inzi.app"
minSdkVersion 9
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.0'
}
I believe you should upgrade your compileSdkVersion. Check your build.grade file, should be something like:
android {
compileSdkVersion 23 // <- here
buildToolsVersion "23.0.0" // <- here
defaultConfig {
applicationId "your.id"
minSdkVersion 11
targetSdkVersion 23 // <- and maybe here
versionCode 1
versionName "1.0"
}
buildTypes {
....
}
}
Of course you will need to download the newest Android SDK and build tools (and whatever else you need) from the SDK Manager.
If you are working in Eclipse do the following:
In your AndroidManifest.xml file change android:targetSdkVersion to 23
Open Project settings (ALT + Enter while focused in Project Explorer)
Go to Android tab and in Project Build Target section mark Android 6.0
Clean and build your project
NOTE: when you do this have in mind that Android OS would treat your app as if it was designed to work on Android M. So for example if you use some dangerous permissions you should add routines to check then on runtime.
You have to update your SDK to the API 23 that is either not downloaded or not installed properly.
In your build.gradle set
compileSdkVersion 23
buildToolsVersion "23.0.0"
targetSdkVersion 23
compile 'com.android.support:appcompat-v7:23.0.0'
I actually found the answer for my problem and the person above was right. The Module SDK set to compile the module was 22.0 and not 23.0. To fix that I did the following.
Right click on appcompat: "Open Module Setting -> Modules SDK": New. I Chose the folder containing the whole Android SDK and chose the last Android (e.g. 6.0) with the last Module SDK 23.0.
Either revert to appcompact-v22 or update to android api v23
You have to update your SDK to the API 23 that is either not downloaded or not installed properly.
Make sure your compileSdkVersion and dependencies version should be same.
I was having problem with new appcompat V-23 as my target sdk is 21. So I did following two steps and it works perfectly for me..
1) Delete the values-23 folder in res folder.
2) I was getting error on the src folder as well, so commented the only line inside main() of snippet.java as we do not require it.
Then add this project as library to your project.. Hope it helps.
I resolved like below
android {
compileSdkVersion "Google Inc.:Google APIs:21"
buildToolsVersion "23.0.0"
defaultConfig {
minSdkVersion 9
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
}
replaced the above dependencies with below...
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.google.android.gms:play-services:7.8.0'
}
To correct this error in android studio procceded like this :
i went to sdk manager and i downloaded and updated all packages of android api 23
file => project structure and i changed compile sdk version from 21 to 23 and build tools version from 21 to 23
The problem generally occurs due to version issues. The following dependencies and compilesdkversion Worked for me:-
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '23.0.3'
defaultConfig {
minSdkVersion 14
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE-FIREBASE.txt'
exclude 'META-INF/NOTICE'
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.google.android.support:wearable:+'
compile 'com.google.android.gms:play-services-wearable:+'
compile 'com.android.support:appcompat-v7:23.0.0'
compile 'com.android.support:recyclerview-v7:23.0.0'
compile 'com.android.support:support-v13:23.0.+'
compile 'com.firebase:firebase-client-android:2.2.4+'
}
The answer #31 & #11 in this discussion can solve this issue:
https://code.google.com/p/android/issues/detail?id=183122
My issue was, one of my un-used dependencies was using sdk-23 version. So after removing those un-used dependencies it worked like a charm.
I am trying to do an application but there seems to be some error with the gradle files now. It was working fine until I upgraded the support libraries.
I was working with api 21 which worked fine, but then i upgraded to api22 and changed the gradle files accordingly.. Now this error shows up.
Error:Failed to find: com.android.support:support-v4:22.2.0
This is my current gradle file :
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "com.example.sampleapp"
minSdkVersion 12
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.android.support:recyclerview-v7:22.2.0'
compile 'com.jakewharton:butterknife:6.1.0'
}
Any help would be appreciated.
If this might help someone, after MANY trials and errors, I found that I was targeting the wrong SDK version (an older one) in the build.gradle file corresponding to "library". To change this you can do it by hand or go to the Module Settings Menu (right click on your project folder -> Open Module Settings. Then in "library" - Properties you can change the Compile Sdk and the Build Tools Versions
Using Android SDK Manager. Go to Extras and then Android Support Repository and update it to the latest version.
(This is essentially the comment #natario made, but it should be an answer.)
I upgraded from Android Studio 0.5 to 0.8
now I have heaps of issues, I resolved most of them but now I get this error
Error:(12) No resource identifier found for attribute 'layout_alignParentStart' in package 'android'
I dont know why it does not have layout_alignParentStart anymore?!
am I missing something here?
I had the same issue, my problem was the compileSdkVersion, I changed from 16 to 20 and it works.
I give you my build.gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 20
buildToolsVersion "19.1.0"
defaultConfig {
applicationId "mypackage"
minSdkVersion 15
targetSdkVersion 20
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:20.+'
// You must install or update the Support Repository through the SDK manager to use this dependency.
// You must install or update the Support Repository through the SDK manager to use this dependency.
compile 'com.android.support:support-v4:20.+'
// You must install or update the Support Repository through the SDK manager to use this dependency.
compile 'com.android.support:support-v13:20.+'
}
Since API level 17, android has some new attributes for RTL layout such as:
layout_alignParentStart
layout_alignParentEnd
layout_alignStart
layout_alignEnd
layout_marginStart
layout_marginEnd
however some devices has special ROM which may not support these attributes and leads exception
Remove all these *Start /*End attributes can fix the issue