Building Android app, (unknown): E0200: Android build failed

General
1

Uno 1.10.0-rc1 (build 187) Windows 10 x64 b79b2df
Copyright © 2018-present Fuse Open

Configuring
0.18 s
Target is up-to-date – stopping build (pass --force to override)
Building Android app

WARNING: The specified Android SDK Build Tools version (26.0.0) is ignored, as it is below the minimum supported version (27.0.3) for Android Gradle Plugin 3.1.3.

{"cookie":"","inReplyTo":"configure","message":"CMake Error: CMake was unable to find a build program corresponding to "Ninja". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.","title":"Error","type":"message"}
CMake Error: CMake was unable to find a build program corresponding to "Ninja". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: CMake was unable to find a build program corresponding to "Ninja". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
Configuration failed.

FAILURE: Build failed with an exception.

  • What went wrong:
    Execution failed for task ':app:generateJsonModelDebug'.
    > com.android.ide.common.process.ProcessException: Error configuring

  • 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

(unknown): E0200: Android build failed

fuse: Errors were encountered while building the project

2

it seems that you need Ninja, you can use brew, then use brew install ninja, if you already have brew, make sure its up-to-date too before trying to install ninja