spawnSync ./gradlew EACCES error when running react native project on emulator

Question

I am trying to use react-native run-android to install my react-native application on an android studio emulator. I have checked with abd-devices that the emulator is available, and I have ran npm-install.

I am using Ubuntu 18.04 with the latest version of android studio, and the latest Pixel 2 XL API 28.

I get the following error:

spawnSync ./gradlew EACCES

Error: spawnSync ./gradlew EACCES
    at Object.spawnSync (internal/child_process.js:998:20)
    at spawnSync (child_process.js:622:24)
    at Object.execFileSync (child_process.js:650:13)
    at runOnAllDevices (/home/user/react/front-end/project/node_modules    /react-native/local-cli/runAndroid/runAndroid.js:299:19)
    at buildAndRun (/home/user/react/front-end/project/node_modules/react-native/local-cli/runAndroid/runAndroid.js:135:12)
    at isPackagerRunning.then.result (/home/user/react/front-end/project/node_modules/react-native/local-cli/runAndroid/runAndroid.js:65:12)
    at processTicksAndRejections (internal/process/next_tick.js:81:5)

I have tried restarting my PC and the emulator several times. Any ideas?

UPDATE: I reinstalled JDK, npm, react-native-cli and android studio. It still gives me the exact same error. Please help.

Have you tried increasing the count of your inotify watchers? github.com/guard/listen/wiki/… — Andrew, Commented Feb 5, 2019 at 19:51
problem is not specific to emulator usage, affects any unix-derived system (tested on Linux, macOS, Windows) works fine on Windows because file modes/ACLs are not relevant on Windows platform. this could be addressed within the rn git repo itself, in that regard accepted answer is a workaround. — wilson0x4d, Commented Apr 3, 2021 at 21:51

Ehsan Sarshar · Accepted Answer · 2019-10-29 12:49:00Z

700

I fixed this problem with:

chmod 755 android/gradlew

the chmod command sets the permissions of files or directories. https://www.computerhope.com/unix/uchmod.htm

edited Oct 29, 2019 at 12:49

Ehsan Sarshar

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answered Mar 5, 2019 at 16:13

Jinkey

7,0161 gold badge8 silver badges3 bronze badges

7

fixed the problem successfully. But it would be nice if you explain what it does. Would've been useful to many people i think.
– AL-zami
Commented May 6, 2019 at 5:06
4

@Grez.Kev this command makes gradlew files into executable. Which help code to give a run. This solution saves my hours. Thnx
– Chander Shakher Ghorela - Guru
Commented May 10, 2019 at 19:02
2

I do not have gradlew directory under my android dir, what sould I do?
– JollyRoger
Commented Sep 1, 2019 at 12:39
1

@BlueBot gradlew is not a directory. It's a file (gradle wrapper) that is part of your project.
– Nathan Getachew
Commented Jan 7, 2021 at 7:33
2

This definitely worked. But just wondering why this wasn't taken as a precaution for React Native development or mentioned in the docs...
– 6rchid
Commented Oct 25, 2021 at 0:37

| Show 7 more comments

Omar Al-Howeiti · Accepted Answer · 2023-07-21 09:33:41Z

82

gradlew file permissions should be updated, you can resolve it by changing the permission, run the following command

chmod 755 android/gradlew

it will give (read,write,execute) permission for the user(owner), also (read, execute) for group and other users.

edited Jul 21, 2023 at 9:33

answered Feb 14, 2019 at 10:07

Omar Al-Howeiti

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Mr_Green · Accepted Answer · 2023-02-02 18:00:43Z

18

It turns out that It's not gradle but it's android/gradlew. run the below command inside the root directory:

$ chmod +x android/gradlew

Now run

$ yarn android            
# OR   
$ npm run android 
# OR
$ npx react-native run-android

You should be good to go.

edited Feb 2, 2023 at 18:00

Mr_Green

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answered Oct 30, 2021 at 4:37

Ericgit

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Lakshan Mamalgaha · Accepted Answer · 2020-06-30 10:24:45Z

17

I tried the above solution.but in my case I had to use sudo because of the permission issue. You can resolve it by running the command

sudo chmod 755 android/gradlew

edited Jun 30, 2020 at 10:24

answered Aug 23, 2019 at 5:25

Lakshan Mamalgaha

3334 silver badges11 bronze badges

1

Can you explain why you don't use the same path as in the other answers?
– Nico Haase
Commented Aug 23, 2019 at 5:58

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Dharman · Accepted Answer · 2021-06-21 05:04:23Z

3

On the first approved answer from @Jinkey, in case you are wondering where to run this command, like in my case on Mac, follow these steps:

In your terminal navigate to your project folder cd <project folder>, make sure the path to your project is correct.
Then once in the folder, run the command by copying and pasting as is chmod 755 android/gradlew

edited Jun 21, 2021 at 5:04

Dharman♦

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answered Jun 21, 2021 at 4:58

Nicholas Mberev

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Vishwanath · Accepted Answer · 2022-10-09 14:41:16Z

1

sudo chmod 755 android/gradlew works perfectly fine for this issue in mac!

answered Oct 9, 2022 at 14:41

Vishwanath

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Soumik Chakraborty · Accepted Answer · 2022-11-29 12:19:10Z

1

Go to the react native cli project directory then run this command below :

sudo chmod 755 android/gradlew

then run the command:

npx react-native run-android

then start the metro (if it is not started automatically) by following command:

npx react-native start

answered Nov 29, 2022 at 12:19

Soumik Chakraborty

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Dusan Spasojevic · Accepted Answer · 2023-11-02 16:54:22Z

1

For me it was go to folder one above your project and run chmod -R a+rwx nameOfTheProject/ or if that doesn't work chmod -R 777 nameOfTheProject/

Solution found on this link https://edwardbeazer.com/how-to-fix-this-error-spawn-eacces/

answered Nov 2, 2023 at 16:54

Dusan Spasojevic

513 bronze badges

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karel · Accepted Answer · 2021-04-05 05:07:46Z

0

On MacBook Air M1 chip chmod 755 android/gradlew works great. Also add the below line in the android/local.properties file.

sdk.dir = /Users/YourUserNAME/Library/Android/sdk

edited Apr 5, 2021 at 5:07

karel

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answered Apr 4, 2021 at 8:30

C Baraliya

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ahmnouira · Accepted Answer · 2023-02-27 10:15:04Z

-1

FIXED

Just run this:

sudo chmod 755 android/gradlew

answered Feb 27, 2023 at 10:15

ahmnouira

3,5711 gold badge35 silver badges17 bronze badges

This has already been mentioned in other answers, such as this one.
– Eric Aya
Commented Mar 1, 2023 at 9:34

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