I'm programming for one specific device and I'm having trouble understanding how I should be setting minsdkversion, compilesdkversion, and targetsdkversion. I want to get a compiler error when I'm using a library that doesn't exist for API level 25. Here's what I gatherered. Minsdkversion prevents calling API that doesn't exist for API version. Compilesdkversion should always be the latest version. Targetsdkversion is what the app was tested against (don't understand what this means).
minsdkversion-25
compilesdkversion-28 (needed for AndroidX)
targetSDKversion-25
Version settings
Among those version settings, only minSdkVersion takes effect to detect API level error. If you'd like to know details of the version settings, see documentation.
How to let build system report API level error
For release builds, place "lintOptions" in app/build.gradle and mark "NewApi" as "fatal". Then lintVitalRelease gradle task reports error during compilation.
android {
lintOptions {
fatal "NewApi"
}
compileSdkVersion 30
defaultConfig {
minSdkVersion 25
targetSdkVersion 30
:
}
:
}
Checking API level manually
In debug builds, the lintOptions above doesn't have any effects because the lint is not included in debug build tasks (there is no lintVitalDebug gradle task). So rather, after coding, run "code inspection" manually to detect all the NewApi problems in your code. If incompatible API uses found, you'll see "calling new methods on older version" error in the inspection result.
Related
`7 issues were found when checking AAR metadata:
Dependency 'androidx.appcompat:appcompat-resources:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.appcompat:appcompat:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.activity:activity:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.activity:activity-ktx:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.core:core-ktx:1.9.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.core:core:1.9.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update this project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Dependency 'androidx.annotation:annotation-experimental:1.3.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Recommended action: Update th
type here
is project to use a newer compileSdkVersion
of at least 33, for example 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
Hey I am trying to run my application and I am getting this error`
The Android Studio 3.1 layout preview fails to find style 'coordinatorLayoutStyle' in the current theme.
Failed to instantiated one or more classes.
Exception shown are :-
java.lang.ClassNotFoundException: android.view.View$OnUnhandledKeyEventListener
This happened due to use of alpha version SDK 28
We need to change the android { ... } in "build.gradle" in app file
compileSdkVersion 28 to compileSdkVersion 27
targetSdkVersion 28 to targetSdkVersion 27
Also, try to change implementations like
implementation 'com.android.support:appcompat-v7:28.0.0-alpha3' to
implementation 'com.android.support:appcompat-v7:27.1.1'
Hope this works!
For Android Studio v3.1.*, in addition we need change:
implementation 'com.android.support:design:28.0.0-alpha3' to
implementation 'com.android.support:design:27.1.1'
you can fix this issue by adding this script to the app module build.gradle, in the android section
configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
def requested = details.requested
if (requested.group == "com.android.support") {
if (!requested.name.startsWith("multidex")) {
details.useVersion "27.+"
}
}
}
}
This appears to be a bug in the current version of Android Studio (3.1.3) as I was encountering the same thing. I downloaded the beta build from here and opened my existing project and the errors disappeared.
https://developer.android.com/studio/preview/?utm_source=android-studio
Not exactly a fix but hopefully it will get you back up and running.
Update
1. com.android.support:appcompat stable version 28.0.0 is released. So no need to downgrade version. Just use 28.0.0.
def supportVersion = "28.0.0"
implementation "com.android.support:appcompat-v7:$supportVersion"
implementation "com.android.support:design:$supportVersion"
You can ignore design library if you don't need it.
2: You also need to update your compileSdkVersion & targetSdkVersion to remove some gradle warnings.
compileSdkVersion 28
targetSdkVersion 28
Never use alpha versions of any library, because alpha, beta and rc
versions may have bugs. And you don't want to face these types of errors often.
Important Suggestion
I suggest you migrate to androidx because android will not update support library after 28.0.0, all updates will be available to androidx package only. Check related answer.
This is fixed in Android Studio 3.2.
Go to app/res/styles and change the Theme.AppCompat.Light.DarkActionBar for this one Base.Theme.AppCompat.Light.DarkActionBar
I am trying to run an app that has a Google Maps Activity on my phone. My phone's running on Android 4.1.3 and the Minimum SDK for my project is API 15: Android 4.0.3
I just created the project on Android Studio and tried to run it on my phone. But it won't run and I am keep getting this error. Can someone tell me how to solve this?
That error probably means that you are using too much libraries. And because you are trying to use google maps I'm guessing you included everything google.
Try to just use the libraries you need.
For maps use this:
dependencies {
com.google.android.gms:play-services-maps:9.2.1
}
Reading material:
https://developers.google.com/android/guides/setup
You need to configure your gradle for multidex.
Modify the module-level build.gradle file configuration to include the support library and enable multidex output, as shown in the following code snippet:
android {
compileSdkVersion 21
buildToolsVersion "21.1.0"
defaultConfig {
...
minSdkVersion 14
targetSdkVersion 21
...
// Enabling multidex support.
multiDexEnabled true
}
...
}
dependencies {
compile 'com.android.support:multidex:1.0.0'
}
See more on same link which you are refering : https://developer.android.com/studio/build/multidex.html#mdex-gradle
You can also see some related question for same error:
How to enable multidexing with the new Android Multidex support library
Android java.exe finished with non-zero exit value 1
With the following gradle script, I was wondering how to change the minSdkVersion from 7 to 3 (just so my app could run on more devices) without getting the error at the bottom of this post:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "dpark.cellular_automata"
minSdkVersion 3
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:design:23.0.1'
}
... And then I would get the following error:
Error:Execution failed for task ':app:processDebugManifest'.
Manifest merger failed : uses-sdk:minSdkVersion 3 cannot be smaller than version 7 declared in library [com.android.support:appcompat-v7:23.0.1] C:\Users\Dave\AndroidStudioProjects\Cellular_Automata\app\build\intermediates\exploded-aar\com.android.support\appcompat-v7\23.0.1\AndroidManifest.xml
Suggestion: use tools:overrideLibrary="android.support.v7.appcompat" to force usage
... That said, is it even possible to lower my minimum SDK to 3 (version 1.5, Cupcake) if I wanted to publish my app with Google Play? And also, in case you're wondering, I also downloaded the Android Support Library in the SDK manager as follows, and yet it still doesn't work:
Thanks!
That error is telling you that one of your libraries (in this case, AppCompat) only supports back to SDK version 7. Since that library cannot support anything lower than 7 and you use that library, you can't support anything lower than 7.
Your options are either:
Remove AppCompat
Support a minimum of API level 7. Note that SDK version 8 currently has less than 0.1% of the market share globally, and all versions less than 8 have a combined total of 1%. It probably isn't worth your time.
That said, is it even possible to lower my minimum SDK to 3 (version 1.5, Cupcake) if I wanted to publish my app with Google Play?
Absolutely. You could upload an Android app supporting API level 1 if you really wanted to.
And also, in case you're wondering, I also downloaded the Android Support Library in the SDK manager as follows, and yet it still doesn't work:
The support library v4 only supports back to API level 4, so I'm not sure how that would help with supporting API level 3.
I'm confused with the compilation under Android.
I've a library using those dependencies :
compile('org.apache.httpcomponents:httpmime:4.3') {
exclude module: 'httpclient'
}
//we need the org.apache.http.entity.ContentType class
compile('org.apache.httpcomponents:httpcore:4.3')
My misunderstanding is that it compiles and seems to run properly, but I would expect a compilation error since :
Android SDK contains many classes with exact same name as the classes in httpcore
Here are my questions :
Why is there no UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added:... during compilation ?
How can I know which version of the duplicate classes is used at runtime ?
I'm using build tools 19 :
buildToolsVersion "19.1.0"
compileSdkVersion 15
defaultConfig {
minSdkVersion 15
targetSdkVersion 15
}
Use the official Apache HttpClient port for Android instead of the stock version