After expo eject : Task 'installDebug' not found in root project 'android'

[HyperNovax]

🐛 Bug Report

Environment

Expo CLI 2.11.3 environment info:
System:
OS: Windows 10
Binaries:
Yarn: 1.13.0 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.8.0 - C:\Program Files\nodejs\npm.CMD
IDEs:
Android Studio: Version 3.4.0.0 AI-183.5429.30.34.5452501

I created an application with expo init. I developped with expo and now I would like build without sending the source on expo server. So I ejected my application with expo eject (ExpoKit).

Steps to Reproduce

You can reproduce the problem with these commands :
expo init NewProject (blank or tabs)
expo eject (choose ExpoKit)
react-native run-android

First problem : gradlew.bat is missing in the android directory. I copy this file from a react-native init new project.

Expected Behavior

I expect a build success or an another error which would mean that I am unlocked.

Actual Behavior

I have this error :

What went wrong: 
Task 'installDebug' not found in root project 'android'.

Try:
Run gradlew tasks to get a list of available tasks. 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

In directory android I use this command gradlew tasks and I have that :

Install tasks
-------------
installDevKernelDebug - Installs the DebugDevKernel build.
installDevKernelDebugAndroidTest - Installs the android (on device) tests for the DevKernelDebug build.
installProdKernelDebug - Installs the DebugProdKernel build.
installProdKernelDebugAndroidTest - Installs the android (on device) tests for the ProdKernelDebug build.
uninstallAll - Uninstall all applications.
uninstallDevKernelDebug - Uninstalls the DebugDevKernel build.
uninstallDevKernelDebugAndroidTest - Uninstalls the android (on device) tests for the DevKernelDebug build.
uninstallDevKernelRelease - Uninstalls the ReleaseDevKernel build.
uninstallProdKernelDebug - Uninstalls the DebugProdKernel build.
uninstallProdKernelDebugAndroidTest - Uninstalls the android (on device) tests for the ProdKernelDebug build.
uninstallProdKernelRelease - Uninstalls the ReleaseProdKernel build.

When I create a react-native application I don't have this problem.

Install tasks
-------------
installDebug - Installs the Debug build.
installDebugAndroidTest - Installs the android (on device) tests for the Debug build.
uninstallAll - Uninstall all applications.
uninstallDebug - Uninstalls the Debug build.
uninstallDebugAndroidTest - Uninstalls the android (on device) tests for the Debug build.
uninstallRelease - Uninstalls the Release build.

[HyperNovax]

I resolve my problem.

Step 1 :

Don't use react-native run-android.

Step 2 :

Copy file gradlew.bat from an another react-native project.

Step 3 :

In directory /android execute the command gradlew tasks.

Check the commands that can be used in Install tasks

Install tasks
-------------
installDevKernelDebug - Installs the DebugDevKernel build.
installDevKernelDebugAndroidTest - Installs the android (on device) tests for the DevKernelDebug build.
installProdKernelDebug - Installs the DebugProdKernel build.
installProdKernelDebugAndroidTest - Installs the android (on device) tests for the ProdKernelDebug build.
uninstallAll - Uninstall all applications.
uninstallDevKernelDebug - Uninstalls the DebugDevKernel build.
uninstallDevKernelDebugAndroidTest - Uninstalls the android (on device) tests for the DevKernelDebug build.
uninstallDevKernelRelease - Uninstalls the ReleaseDevKernel build.
uninstallProdKernelDebug - Uninstalls the DebugProdKernel build.
uninstallProdKernelDebugAndroidTest - Uninstalls the android (on device) tests for the ProdKernelDebug build.
uninstallProdKernelRelease - Uninstalls the ReleaseProdKernel build.

Use the command gradlew installDevKernelDebug.

The application will be installed on the mobile.

Step 4 :

Go in the root directory and expo start.
In the browser go to http://localhost:19002.
Select the local connection and recover the value like
expXXXXXXXXXXXXXXXXXXX://127.0.0.1:19000.

Check the file on <NameProject>\android\app\src\main\java\host\exp\exponent\generated\DetachBuildConstants.java and copy the value in DEVELOPMENT_URL variable.

Step 5 :

Exit Metro Bundler with CTRL+C on the console.
Use gradlew installDevKernelDebug in the android directory.
After the build go in root directory and use expo start.

To finish start the application on device.

Voila !