React-Native run-android command issue

Question

When starting android project with React-Native it is giving this error:

React-Native Command run-android unrecognized.Did you mean to run this inside a react-native project?

Answer 1

你可以尝试在react-native run-android之前做npm install

Answer 2

First we have to install react-native then upgrade packages if you need and run android.

npm install --save react-native@latest

react-native upgrade

react-native run-android

Answer 3

A lot of developers fail to mention the crucial point,that certain commands require you to be a particular directory. In this case, to "react-native run-android", you have to be in your project directory!

Answer 4

Command run-android unrecognized. Make sure that you have run npm install and that you are inside a react-native project.

I faced this issue, the problem is we need to navigate to or project folder.

example: I created the project in "MyApps" with app name "DemoApp" in D drive

the command line root should be like this: D:\\MyApps\\DemoApp>react-native run-android

now it will run with out any issue.

The problem is your android related info is presents inside the app not t=in the main directory.

Answer 5

I was facing the same problem and the above solutions did not work. Try using:

yarn add react-native-cli

Answer 6

First of all please see if devices/emulator is attached and working by following command

adb devices

there should be some devices showing connected
it is better to restart/reconnect you emulator/device and then try to run application again
if not working you can also try

npm install 

Answer 7

你需要确保你在项目中，比如 cd AwesomeProject 并执行 npm i ，然后执行 npx react-native run-android

Answer 8

In my case the problem was that I was in the android folder of my project due to this command cd android && ./gradlew assembleRelease .So the solution was to cd ../ and come to root of project and then running this command

react-native run-android --variant=release

ran fine.

Answer 9

对我来说，问题是我不在项目目录 AwesomeProject 中（我使用此命令创建的项目：

react-native init AwesomeProject )

Answer 10

I got it fixed after adding Android sdk-tools to PATH, and restarting VSCode/Terminal.

/Users/<username>/Library/Android/sdk/build-tools

Earlier my path set to

/Users/<username>/Library/Android/sdk

Answer 11

1.make sure java jdk installed 2.make sure npm installed in your project root folder 3.this works for me