Develop Reference

Cannot enable Android Lint rules via Gradle

I'm trying to enable disabled-by-default rules in Android Lint. I've added Android Lint to my Gradle config like this:
android {
// …other config…
lintOptions {
abortOnError true
}
}
When I run ./gradlew lint I get a HTML report generated that mentions: "Disabled Checks (28)" and gives me the names and descriptions of the rules disabled.
The official docs say that I can pass an "enable" option, with a set of strings. I've tried to enable all disabled rules as follows:
lintOptions {
enable 'AppLinksAutoVerifyError', 'AppLinksAutoVerifyWarning', 'BackButton', 'DalvikOverride', 'DuplicateStrings', 'EasterEgg', 'FieldGetter', 'GoogleAppIndexingApiWarning', 'IconExpectedSize', 'ImplicitSamInstance', 'KotlinPropertyAccess', 'LambdaLast', 'LockedOrientationActivity', 'LogConditional', 'MangledCRLF', 'MinSdkTooLow', 'MissingRegistered', 'NoHardKeywords', 'NonResizeableActivity', 'RequiredSize', 'SourceLockedOrientationActivity', 'StopShip', 'SyntheticAccessor', 'UnknownNullness', 'UnpackedNativeCode', 'UnsupportedChromeOsCameraSystemFeature', 'ValidActionsXml', 'WrongThreadInterprocedural'
abortOnError true
}
When rerunning ./gradlew lint it now says "Disabled checks (23)" — I can see that checks such as StopShip and DuplicateStrings are now enabled, but many others — e.g. AppLinksAutoVerifyError, AppLinksAutoVerifyWarning, BackButton, DalvikOverride, EasterEgg, etc — are 'stuck' on disabled.
How can I enable these rules? Is there a maximum number of rules that can be ran at one time?

Lint found fatal errors

While generating release in android studio Build--> Generating signed Bundle/APK(s), I got below message
"Lint found fatal errors while assembling a release target", because of this I am unable to generate the release build

Try this:
lintOptions {
checkReleaseBuilds false
}
to app level build.grade file within the android{ } section.

In your Android Studio, switch to the Project pane. Go app --> build
--> reports --> lint-results-prodRelease-fatal.xml
Here android studio will open the file explaining the error, message, and the place and line number where it has occurred.

Now in 2022, the path to lint output might be changed. please check in For me I found the error mentioned in this path
app\build\intermediates\lint_vital_intermediate_text_report\release\lint-results-release.txt
a work around but will not solve the real problem and you might face troubles in production is to change below true to false. but I don't recommend it.
android {
lintOptions {
checkReleaseBuilds true
abortOnError true
}

Android - set all lint warnings as errors except for certain ones

I am trying to make my continuous integration fail the build when new lint warnings that aren't in the lint-baseline.xml file are introduced. I want to have all lint warnings treated as errors (so the build is aborted), but I'd like a way to specify certain lint checks to be treated as informational or warning level so that they still appear in the lint results, but don't cause the build to be aborted.
Here is an example of basically what I'd like to do (except this doesn't work, the build fails if any non-ignored warnings exist):
lintOptions {
lintConfig file("lint.xml")
baseline file("lint-baseline.xml")
checkAllWarnings true
warningsAsErrors true
abortOnError true
informational 'MissingTranslation, ...' // don't fail the build for these
}
Is there an easy way to treat all lint checks as errors, excluding certain ones? I thought about manually setting all 200+ lint checks to the error level, but that wouldn't be very future proof, since I'd have to update the list every time new lint checks were added.

You should be able to achieve what you want if you do not use the Gradle lintOptions (checkAllWarnings, warningsAsErrors, etc.) to configure which warnings should be treated as errors. Use lint.xml instead. There you can do the following:
<?xml version="1.0" encoding="UTF-8"?>
<lint>
<issue id="MissingTranslation" severity="warning" />
<!-- The following must be at the bottom of your file!
All lint issues (not listed above) will be treated as errors. -->
<issue id="all" severity="error" />
</lint>
In my tests this seemed to work fine and all warnings were treated as errors except for those listed at the top of the lint.xml.
However, I've not tested it in combination with a lint-baseline.xml but I see no reason why it shouldn't work there as well.

For me, this configuration worked:
android {
lintOptions {
warningsAsErrors true
warning 'MissingTranslation', ...
}
}
It seems the options are evaluated in the "correct order" (aka "as I need it"), i.e. first all warnings are elevated to errors, then this settings is overriden again for a single issue id. Using warning instead of disable or ignore ensures the issues are still visible in the report or the IDE.

It doesnt seem informational is a real option from this doc, I suggest:
android {
lintOptions {
checkAllWarnings true
warningsAsErrors true
// use this line to check all rules except those listed
disable 'MissingTranslation', ...
//OR this line to check but not worry about result (i think this is what you want)
ignore 'MissingTranslation', ...
}
}

Add lint to CI and mark a build fail when lint produces errors for Android Studio projects

I need the Gradle build to be marked as a failure and it should be stopped automatically if running lint gives me an error. I made the changes in code as required but it did not result in any change.
Code:
lintOptions {
// set to true to turn off analysis progress reporting by lint
quiet true
// if true, stop the gradle build if errors are found
abortOnError true
// if true, only report errors
ignoreWarnings false
}
Also apart from it, I need to add lint to CI. The CI software I use is Jenkins. SO I need to configure their android linting plugin of Jenkins such that the build is stopped and marked Failure if Lint gives an error.
I am very new to lint and CI, so please provide a detailed answer.

You don't need the Lint Jenkins plugin. Just put something this in your JenkinsFile.
try {
sh './gradlew lint'
} finally {
step([$class: 'ArtifactArchiver', artifacts: 'app/build/reports/staticAnalysis/lint/', fingerprint: true])
}
ArtifactArchiver is just to collect artifacts after lint check.

How to sign APK on Android Studio even with non-translated strings?

Background
I've recently migrated my app to Android-Studio. I had some issues doing so, but I got over them eventually.
The problem
For some reason, on Android Studio, when I try to sign an APK, I get a lot of errors that look like this:
Error:(16) Error: "..." is not translated in "de" (German), "el" (Greek), "iw" (Hebrew) [MissingTranslation]
(where "..." is a string)
At the bottom, after a lot of errors of this kind, I see this:
Error:Execution failed for task ':app:lintVitalRelease'.
> Lint found fatal errors while assembling a release target.
To proceed, either fix the issues identified by lint, or modify your build script as follows:
...
android {
lintOptions {
checkReleaseBuilds false
// Or, if you prefer, you can continue to check for errors in release builds,
// but continue the build even when errors are found:
abortOnError false
}
}
...
The question
I'm not sure what's wrong and how I can fix it. On Eclipse I did it very easily. Missing translations shouldn't stop me from signing an APK...
To me it seems as if Lint is preventing the exporting of the APK, and that the reason is that I didn't translate all of the strings. Is that true?
Can anyone please help me? How can I fix this, so that Lint will show me just warnings instead? or a confirmation dialog if I'm sure I want to do it?

The cleanest way to solve the problem is to disable Lint checks of missing translations for release builds only.
To do so add "disable 'MissingTranslation'" to your build.gradle file as shown below:
android {
buildTypes {
release {
lintOptions {
disable 'MissingTranslation'
}
}
}
}

To me it seems as if Lint is preventing the exporting of the APK, and
that the reason is that I didn't translate all of the strings. Is that
true?
Yes. Default option is lintOptions.abortOnError = true
Can anyone please help me?
You should open the build.gradle file located at the main project module, or the generic folder if you do not have a module. Then add the suggested lines:
android {
lintOptions {
checkReleaseBuilds false
// Or, if you prefer, you can continue to check for errors in release builds,
// but continue the build even when errors are found:
abortOnError false
}
}
Some Lint warnings are by default turned to studio as errors, I don't actually know why, but in terms of translations I guess that is a way to "stop" you publishing an app that the translation is incomplete due to a last minute additions of some texts.
With the lintOptions checkReleaseBuilds abortOnError you set the checking of Lint not to run for release versions and also not stopping if an "error" is found. Below I explain where the Lint errors settings can be found, so if you want to go further you can go one step forward and read them one by one. Some of them provide helpful instructions for code optimizations.
How can I fix this, so that Lint will show me just warnings instead?
or a confirmation dialog if I'm sure I want to do it?
There is also an option at the Android Studio settings to change any Lint error to Lint warning, but I never test that. I usually turn to the gradle solution.
The option is located at Settings > Inspections > Android Lint. For easy find open Settings and at the search (located at the top) type Lint translation there you can change the translation options appear at the left from errors to warnings.
An other option if your error strings never going to be translated is to add at your XML string files tools:ignore="MissingTranslation" either at the root item or at each non-translatable string.

Simple way to solve this Error
Just add following Code To do add "disable 'MissingTranslation'" to your build.gradle file as shown below:
...
android {
lintOptions {
checkReleaseBuilds false
// Or, if you prefer, you can continue to check for errors in release builds,
// but continue the build even when errors are found:
abortOnError false
}
}
...
OR You can also Add this:
android {
buildTypes {
release {
lintOptions {
disable 'MissingTranslation'
}
}
}
}

You could try to open "Translations Editor" and set the string "..." as "Unstranlatable".
You also must remove all translations of this string.

FWIW: If you don't plan on supporting other languages, then you don't need to disable the lint checks at all. Sometimes your project setup (or a library you're importing) may have accidentally - or intentionally - included a config to support additional languages by declaring a values- folder for that language like this for instance:
<your project source folder>/main/res/values-ar
This was the case for me so I simply removed the folder. But if you have no control over the offending library then one choice is to disable lint abortOnError as indicated in the accepted answer, or find a way to exclude 'library-imported' folders somehow. For the latter option you can start here

there is many solution but i tried
<string name="hello" translatable="false">hello</string>
It's the ignore attribute of the tools namespace in your strings file, as follows:
<?xml version="1.0" encoding="utf-8"?>
<resources
xmlns:tools="http://schemas.android.com/tools"
tools:ignore="MissingTranslation" >
<!-- your strings here; no need now for the translatable attribute -->
</resources>
and from the Gradle
release {
lintOptions {
disable 'MissingTranslation'
}
}
and
android {
lintOptions {
disable 'MissingTranslation'
}
}

Working
buildTypes {
release {
lintOptions {
checkReleaseBuilds false
abortOnError false
}
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}