Exception while build and run flutter app

Question

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warning: [options] source value 7 is obsolete and will be removed in a future release warning: [options] target value 7 is obsolete and will be removed in a future release warning: [options] To suppress warnings about obsolete options, use -Xlint:-options. error: warnings found and -Werror specified FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':connectivity:compileDebugJavaWithJavac'.

Compilation failed; see the compiler error output for details.

• 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 1m 24s Running Gradle task 'assembleDebug'...
  Running Gradle task 'assembleDebug'... Done 85.5s Exception: Gradle task assembleDebug failed with exit code 1**

Answer 1

You should check your gradle version with gradle version that imported packages using that . try this in build gradle module level : android/build.gradle

classpath 'com.android.tools.build:gradle:3.5.0'

in gradle wrapper android/gradle/wrapper/gradle-wrapper.properties

distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip