Flutter Gradle build failed with an exception

Question

In my company behind our proxy i can't start a flutter project. I don't get gradle running.

I set this config into gradle.properties:

systemProp.http.proxyHost=http://my.company.com
systemProp.http.proxyPort=8080
systemProp.http.nonProxyHosts=127.0.0.1|localhost
systemProp.https.proxyHost=http://my.company.com
systemProp.https.proxyPort=8080
systemProp.https.nonProxyHosts=127.0.0.1|localhost

SSL encrypted traffic will be decrypted. We have self signed certificates on our proxy server. I don't find any way to tell gradle the path to my certs.pem file.

The stacktrace

Launching lib\main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
* Error running Gradle:
Exit code 1 from: C:\Users\i01002704\Documents\Projects\Android\time_tracker\android\gradlew.bat app:properties:

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve com.android.tools.build:gradle:3.1.4.
     Required by:
         project :
      > Could not resolve com.android.tools.build:gradle:3.1.4.
         > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.4/gradle-3.1.4.pom'.
            > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.4/gradle-3.1.4.pom'.
               > http://my.company.com
      > Could not resolve com.android.tools.build:gradle:3.1.4.
         > Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.1.4/gradle-3.1.4.pom'.
            > Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.1.4/gradle-3.1.4.pom'.
               > http://my.company.com
   > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.61.
     Required by:
         project :
      > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.61.
         > Could not get resource 'https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.61/kotlin-gradle-plugin-1.2.61.pom'.
            > Could not GET 'https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.61/kotlin-gradle-plugin-1.2.61.pom'.
               > http://my.company.com
      > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.61.
         > Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.61/kotlin-gradle-plugin-1.2.61.pom'.
            > Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.61/kotlin-gradle-plugin-1.2.61.pom'.
               > http://my.company.com

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s

Finished with error: Please review your Gradle project setup in the android/ folder.

Martin Zeitler · Accepted Answer · 2018-09-19 13:00:20Z

1

edit gradle/wrapper/gradle-wrapper.properties and update to Gradle 4.4or 4.5:

distributionUrl=https\://services.gradle.org/distributions/gradle-4.5-all.zip

also make sure the buildscript has repository google() added.

the documentation does not provide an option to set the certificate.

answered Sep 19, 2018 at 13:00

Martin Zeitler

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3 Comments

Kas Elvirov Over a year ago

I had to downgrade from 5.6.2 to 5.4.1 but anyway, your tip helped me much. I was looking for solution a few days. Thank you very much )

Martin Zeitler Over a year ago

@ArtemSolovev The currently required version is rather Gradle 6.5 ...this depends on the version of Android Studio and the Gradle plugin; downgrading barely is the solution, but rather a workaround.

Timur Nurmagambetov Over a year ago

why do you escape colon in https\:// ?

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