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projects are created with errors in android studio

I am using android studio and when i try to create a new project i found that the manifest file always contains android:name=".MainActivity" highlighted
with red as well as AppCompatActivity, onCreate and setContentView in the following code:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Please let me know how solve it
build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.example.com.myapplication"
minSdkVersion 23
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'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:design:23.0.1'
}
style:
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">//cant
resolve symbol Theme+cant resolve symbol AppCompat
</style>

Try sync project with build.gradle.
Do you set right sdk path.

This usually happens when you need to upgrade Android Studio. Please go to
-Tools/Android/SDK Manager, 'Launch Standalone SDK Manager' (at the bottom) and install what it has pre-selected.
Sometimes when you have errors it will pop up in the top right of Android Studio presenting you with a 'Fix' button as well, try re-starting Android Studio and looking out for this option.
If the above suggestions don't work let me know and I'll look further into it.
EDIT: You have not included the support library dependency. This is why Android Studio cannot find AppCompat etc. Please go to your app level build.gradle file and include this line under 'dependencies' and re-sync your project (as it will ask you to do).
compile 'com.android.support:appcompat-v7:23.1.1'

Check if you are using the right versions for these lines. You are possibly using an older version of Build Tools or AppCompat library in your IDE. Maybe Android Studio is not updating the versions in your manifest file when you create a new project.
buildToolsVersion "23.0.2"<--- This line
compile 'com.android.support:appcompat-v7:23.0.1'<--- This line
After installing the updated version of both of these lines, sync project.

Android Studio - Appcompat build fail values-v23/styles_bases.xml

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.

Unable to build project in Android Studio

I imported a project into Android Studio from Eclipse. It was building successfully in Eclipse.
At the end of importing process I got this error:
Gradle project sync failed. Basic functionality will not work
In the Gradle console I get the following error:
Error:Failed to find: com.android.support:appcompat-v7:20.+
I have already installed google support repository as mentioned in other places.
This is my build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 20
buildToolsVersion "21.0.0"
defaultConfig {
applicationId "com.entujn.demo"
minSdkVersion 10
targetSdkVersion 19
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard- rules.txt'
}
}
}
dependencies {
compile 'com.google.android.gms:play-services:+'
compile 'com.android.support:appcompat-v7:20.+'
compile files('libs/commons-lang3-3.3.2.jar')
}
local.properties:
sdk.dir=/home/pankaj/adt-bundle-linux-x86_64-20140702/sdk
SDK directory structure screenshot
Looks like the appcompat stuff is not present at the right place, how do I fix it ?

Looks like Android Studio uses another copy of SDK, which does not have Android Support repository installed. Please make sure it has all needed components installed.

Failure [INSTALL_FAILED_OLDER_SDK] Android-L

I'm trying to use the new CardView from Android L. I updated everything in the SDK manager, but I keep getting the following error:
Failure [INSTALL_FAILED_OLDER_SDK]
This is my build.gradle file:
apply plugin: 'android'
android {
compileSdkVersion 'android-L'
buildToolsVersion '20.0.0'
defaultConfig {
applicationId "www.thomascbeerten.com.nieuwetests"
minSdkVersion 8
targetSdkVersion 20
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
// Support Libraries
compile 'com.android.support:support-v4:19.1.0'
compile 'com.android.support:appcompat-v7:19.1.0'
compile 'com.android.support:gridlayout-v7:19.1.0'
compile 'com.android.support:mediarouter-v7:19.1.0'
// compile 'com.android.support:support-v13:19.1.0'
compile 'com.android.support:recyclerview-v7:+'
}

Recently there was a post here regarding the L SDK's incompatibility
with prior versions of Android. I've been digging in AOSP repositories
for quite a few hours now, and determined that the tools behave this
way because they are designed to treat preview platforms differently.
If you compile against a preview SDK (android-L), the build tools will
lock minSdkVersion and targetSdkVersion to that same API level. This
results in the produced application being unable to be installed on
devices running older releases of Android, even if your application
isn't doing anything specific to L. To make matters worse, the new
support libs (CardView, RecyclerView, Palette, etc.) are also locked
into the L API level, even though--according to their repository
names--they should work on API level 7 just fine (and they do!).
See my Reddit post about this here, with a workaround.

Once you have the above issues resolved as mentioned by Eddie. You might also run into another error;;
Error:Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light'.
This will be present in your styles.xml . The quick fix is to replace it with the following below:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!--<style name="AppTheme" parent="android:Theme.Material.Light">-->
<style name="AppTheme" parent="android:Theme.Holo.Light">
</style>

Change
android {
compileSdkVersion 'android-L'
buildToolsVersion '20.0.0'
to
android {
compileSdkVersion 21
buildToolsVersion '21.0.2'
Note android-L is in single quotes but 21 isn't. 21 is an integer and not a string.

When you compile with L it actually makes a change during compilation setting your minsdkversion to L. If you want to use RecyclerView or CardView I would recommend checking out RecyclerViewLib. RecyclerView and CardView have been moving into this library so that there is no min version L problem. The author also explained in his blog post how all L related code was removed to make it safe to use.
To add RecyclerViewLb to your project just add the following line to your dependencies in your build.gradle file:
compile 'com.twotoasters.RecyclerViewLib:library:1.0.+#aar'
You then do not want to add the compile 'com.android.support:recyclerview-v7:+' to your build.gradle as you will get that through RecyclerViewLib.

I just ran into this problem. This can happen when your min sdk version and built targets are set to a higher API level/OS version than your phone is running. If you're using Android Studio, go to File > Project Structure > and edit relavent settings then Run again.

Failure [INSTALL_FAILED_OLDER_SDK] in Android Studio

So I know that many other people had this problem, but mine is a little different. I've tried running my app on an LG G2 with Android 4.4.4, and a Note 3 with Android 4.4.2, but neither worked. I have installed the API 18, 19, and 20 SDKs.
Failure [INSTALL_FAILED_OLDER_SDK]
build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 'android-L'
buildToolsVersion "20.0.0"
defaultConfig {
applicationId "com.ween.control"
minSdkVersion 8
targetSdkVersion 'L'
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-v7:19.+'
}

You can't test an Android-L app on a device with lower API.
Take a look here.

You need to make sure your dependencies are configured targeting the same sdk (also make sure the sdk is supported for the dependency).
As of version .11, the gradle plugin now uses the new manifest merger tool by default which you can use to avoid conflicting configurations when merging manifests from your dependencies while building by specifying <uses-sdk tools:node="replace" /> in your AndroidManifest.xml file.
http://tools.android.com/tech-docs/new-build-system/user-guide/manifest-merger
credit goes to Eddie Ringle

I was having a similar issue but my device sdk was 19 and it was looking for it to be 20. I changed the sdk from the file > Project Structure > SDK to 19 also I noticed when I was running it had the wear value selected in the top toolbar so I switched that to mobile and Voila.