(#) Multiple `` elements in the manifest
!!! ERROR: Multiple `` elements in the manifest
This is an error, and is also enforced at build time when
supported by the build system. For Android this means it will
run during release builds.
Id
: `MultipleUsesSdk`
Summary
: Multiple `` elements in the manifest
Severity
: Fatal
Category
: Correctness
Platform
: Android
Vendor
: Android Open Source Project
Feedback
: https://issuetracker.google.com/issues/new?component=192708
Since
: Initial
Affects
: Manifest files
Editing
: This check runs on the fly in the IDE editor
See
: https://developer.android.com/guide/topics/manifest/uses-sdk-element.html
Implementation
: [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-checks/src/main/java/com/android/tools/lint/checks/ManifestDetector.kt)
Tests
: [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/ManifestDetectorTest.kt)
Copyright Year
: 2011
The `` element should appear just once; the tools will **not**
merge the contents of all the elements so if you split up the attributes
across multiple elements, only one of them will take effect. To fix
this, just merge all the attributes from the various elements into a
single element.
(##) Example
Here is an example of lint warnings produced by this check:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~text
AndroidManifest.xml:7:Error: There should only be a single
element in the manifest: merge these together [MultipleUsesSdk]
<uses-sdk android:targetSdkVersion="14" />
--------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here are the relevant source files:
`AndroidManifest.xml`:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="test.bytecode"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="5" />
<uses-sdk android:targetSdkVersion="14" />
<uses-sdk android:maxSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".BytecodeTestsActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`res/values/strings.xml`:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers
<!-- Copyright (C) 2007 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<resources>
<!-- Home -->
<string name="home_title">Home Sample</string>
<string name="show_all_apps">All</string>
<!-- Home Menus -->
<string name="menu_wallpaper">Wallpaper</string>
<string name="menu_search">Search</string>
<string name="menu_settings">Settings</string>
<string name="sample" translatable="false">Ignore Me</string>
<!-- Wallpaper -->
<string name="wallpaper_instructions">Tap picture to set portrait wallpaper</string>
</resources>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You can also visit the
[source code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/ManifestDetectorTest.kt)
for the unit tests for this check to see additional scenarios.
The above example was automatically extracted from the first unit test
found for this lint check, `ManifestDetector.testMultipleSdk`.
To report a problem with this extracted sample, visit
https://issuetracker.google.com/issues/new?component=192708.
(##) Suppressing
You can suppress false positives using one of the following mechanisms:
* Adding the suppression attribute `tools:ignore="MultipleUsesSdk"` on
the problematic XML element (or one of its enclosing elements). You
may also need to add the following namespace declaration on the root
element in the XML file if it's not already there:
`xmlns:tools="http://schemas.android.com/tools"`.
```xml
<?xml version="1.0" encoding="UTF-8"?>
<manifest xmlns:tools="http://schemas.android.com/tools">
...
<application tools:ignore="MultipleUsesSdk" .../>
...
</manifest>
```
* Using a special `lint.xml` file in the source tree which turns off
the check in that folder and any sub folder. A simple file might look
like this:
```xml
<?xml version="1.0" encoding="UTF-8"?>
<lint>
<issue id="MultipleUsesSdk" severity="ignore" />
</lint>
```
Instead of `ignore` you can also change the severity here, for
example from `error` to `warning`. You can find additional
documentation on how to filter issues by path, regular expression and
so on
[here](https://googlesamples.github.io/android-custom-lint-rules/usage/lintxml.md.html).
* In Gradle projects, using the DSL syntax to configure lint. For
example, you can use something like
```gradle
lintOptions {
disable 'MultipleUsesSdk'
}
```
In Android projects this should be nested inside an `android { }`
block.
* For manual invocations of `lint`, using the `--ignore` flag:
```
$ lint --ignore MultipleUsesSdk ...`
```
* Last, but not least, using baselines, as discussed
[here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).