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KDoctor

KDoctor is a command-line tool that helps to set up the environment for Kotlin Multiplatform Mobile app development.

Overview

KDoctor ensures that all required components are properly installed and ready for use. If something is missed or not configured, KDoctor highlights the problem and suggests how to fix the problem.

KDoctor runs the following diagnostics:

System - checks an operating system version
JDK - checks that JDK installation and JAVA_HOME setting
Android Studio - checks Android Studio installation, Kotlin and Kotlin Multiplatform Mobile plugins
Xcode - checks Xcode installation and setup
CocoaPods - checks ruby environment and cocoapods gem installation

Extra diagnostics:

Synthetic generated project - downloads and builds project from https://github.com/Kotlin/kdoctor/tree/template
Local Gradle Project - checks a user's project in the current directory

Requirements

KDoctor works on MacOS only.

Installation

Manual

You can download an archive from GitHub:

Go to Releases page
Download the latest available version there
Unpack it to preferred place

Homebrew

Install via Homebrew with the following command:

brew install kdoctor

Build From Source

To build from source use:

git clone https://github.com/Kotlin/kdoctor
cd kdoctor
./gradlew assembleReleaseExecutableMacos

Usage

Call KDoctor in the console and wait till it completes the diagnostics

kdoctor
Diagnosing Kotlin Multiplatform Mobile environment...

Once KDoctor finishes the diagnostics, it yields a report. If no problems are found your system is ready for Kotlin Multiplatform Mobile development:

Your system is ready for Kotlin Multiplatform Mobile Development!

If KDoctor notifies that there are problems, please review the report:

KDoctor has diagnosed one or more problems while checking your environment.
Please check the output for problem description and possible solutions.

Check the results of each diagnostic. There are 3 possible statuses:

[✓] - Success
[✖] - Failure
[!] - Warning

Pay the most attention to the failed diagnostics ([✖]) and look for messages that start with * for problem description and potential solution.

It is also worth checking diagnostics with warnings ([!]) and even successful messages as they may contain useful notes and tips.

Execute KDoctor with a -h option to print all available options

kdoctor -h
Usage: kdoctor [OPTIONS]

Options:
  --version      Report a version of KDoctor
  -v, --verbose  Report an extended information
  -a, --all      Run extra diagnostics such as a build of a synthetic project
                 and an analysis of a project in the current directory
  -h, --help     Show this message and exit

Sample verbose output

kdoctor -v
Environment diagnose:
[✓] Operation System
  ➤ Version OS: macOS 13.1
    CPU: Apple M1 Max

[✓] Java
  ➤ Java (openjdk version "11.0.16" 2022-07-19 LTS)
    Location: /Users/me/.sdkman/candidates/java/current/bin/java
  ➤ JAVA_HOME: /Users/me/.sdkman/candidates/java/current

[✓] Android Studio
  i Multiple Android Studio installations found
  ➤ Android Studio (AI-222.4459.24.2221.9445173)
    Location: /Users/me/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/222.4459.24.2221.9445173/Android Studio Preview.app
    Bundled Java: openjdk 17.0.4.1 2022-08-12
    Kotlin Plugin: 222-1.8.0-release-AS3739.54
    Kotlin Multiplatform Mobile Plugin: 1.0.0-SNAPSHOT
  ➤ Android Studio (AI-221.6008.13.2211.9477386)
    Location: /Users/me/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-2/221.6008.13.2211.9477386/Android Studio.app
    Bundled Java: openjdk 11.0.15 2022-04-19
    Kotlin Plugin: 221-1.7.21-release-for-android-studio-AS5591.52
    Kotlin Multiplatform Mobile Plugin: 0.5.2(221)-3
  i Note that, by default, Android Studio uses bundled JDK for Gradle tasks execution.
    Gradle JDK can be configured in Android Studio Preferences under Build, Execution, Deployment -> Build Tools -> Gradle section

[✓] Xcode
  ➤ Xcode (14.2)
    Location: /Applications/Xcode-14.2.0.app
  i Xcode JAVA_HOME: /Users/me/Library/Java/JavaVirtualMachines/jbr-17.0.5/Contents/Home
    Xcode JAVA_HOME can be configured in Xcode -> Settings -> Locations -> Custom Paths

[✓] Cocoapods
  ➤ ruby (ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [arm64-darwin21])
  ➤ ruby gems (3.3.26)
  ➤ cocoapods (1.11.3)

Recommendations:
  ➤ IDE doesn't suggest running all tests in file if it contains more than one class
    More details: https://youtrack.jetbrains.com/issue/KTIJ-22078
Conclusion:
  ✓ Your system is ready for Kotlin Multiplatform Mobile Development!

Issue Tracker

KDoctor subsystem in Kotlin issue tracker

License

Apache-2.0