run-android failed 'C:\Program' is not recognized as an internal or external command

[omidazm94]

hi, i'm facing this problem and its weird cause it happened when i created a new project with react-native init two days ago. i can run the old project but when i try to use command react-native run-android in the new project it gives me an error. and from the last few days every project that i build have a problem even if i build with Previous react-native versions, something comes like warnOnce and so on. is it something new that changed in react and react-native that cause these problems ?
please help me
#25936
(react-native info)
React Native version:
System:
OS: Windows 10
CPU: (8) x64 Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
Memory: 4.21 GB / 7.95 GB
Binaries:
Node: 8.11.3 - C:\Program Files\nodejs\node.EXE
npm: 5.6.0 - C:\Program Files\nodejs\npm.CMD
IDEs:
Android Studio: Version 3.5.0.0 AI-191.8026.42.35.5791312
npmPackages:
react: 16.9.0 => 16.9.0
react-native: 0.61.2 => 0.61.2

info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 863 file(s) to forward-jetify. Using 8 workers...
info Starting JS server...
'C:\Program' is not recognized as an internal or external command,
operable program or batch file.
info Launching emulator...
'C:\Program' is not recognized as an internal or external command,
operable program or batch file.
error Failed to launch emulator. Reason: Emulator exited before boot..
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...

FAILURE: Build failed with an exception.

Where:
Script 'C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules@react-native-community\cli-platform-android\native_modules.gradle' line: 182

What went wrong:
A problem occurred evaluating script.

Unable to determine the current character, it is not a string, number, array, or object

The current character read is 'C' with an int value of 67
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules\react-native\cli.js{ "root": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "reactNativePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules\react-native", "dependencies": {}, "commands": [ { "name": "log-ios", "description": "starts iOS device syslog tail" }, { "name": "run-ios", "description": "builds your app and starts it on iOS simulator", "examples": [ { "desc": "Run on a different simulator, e.g. iPhone 5", "cmd": "react-native run-ios --simulator "iPhone 5"" }, { "desc": "Pass a non-standard location of iOS directory", "cmd": "react-native run-ios --project-path "./app/ios"" }, { "desc": "Run on a connected device, e.g. Max's iPhone", "cmd": "react-native run-ios --device "Max's iPhone"" }, { "desc": "Run on the AppleTV simulator", "cmd": "react-native run-ios --simulator "Apple TV" --scheme "helloworld-tvOS"" } ], "options": [ { "name": "--simulator [string]", "description": "Explicitly set simulator to use. Optionally include iOS version betweenparenthesis at the end to match an exact version: "iPhone 6 (10.0)"", "default": "iPhone 11" }, { "name": "--configuration [string]", "description": "Explicitly set the scheme configuration to use", "default": "Debug" }, { "name": "--scheme [string]", "description": "Explicitly set Xcode scheme to use" }, { "name": "--project-path [string]", "description": "Path relative to project root where the Xcode project (.xcodeproj) lives.", "default": "ios" }, { "name": "--device [string]", "description": "Explicitly set device to use by name. The value is not required if you have a single device connected." }, { "name": "--udid [string]", "description": "Explicitly set device to use by udid" }, { "name": "--no-packager", "description": "Do not launch packager while building" }, { "name": "--verbose", "description": "Do not use xcpretty even if installed" }, { "name": "--port [number]", "default": 8081 }, { "name": "--terminal [string]", "description": "Launches the Metro Bundler in a new window using the specified terminal path." } ] }, { "name": "log-android", "description": "starts logkitty" }, { "name": "run-android", "description": "builds your app and starts it on a connected Android emulator or device", "options": [ { "name": "--root [string]", "description": "Override the root directory for the android build (which contains the android directory)", "default": "" }, { "name": "--variant [string]", "description": "Specify your app's build variant", "default": "debug" }, { "name": "--appFolder [string]", "description": "Specify a different application folder name for the android source. If not, we assume is "app"", "default": "app" }, { "name": "--appId [string]", "description": "Specify an applicationId to launch after build.", "default": "" }, { "name": "--appIdSuffix [string]", "description": "Specify an applicationIdSuffix to launch after build.", "default": "" }, { "name": "--main-activity [string]", "description": "Name of the activity to start", "default": "MainActivity" }, { "name": "--deviceId [string]", "description": "builds your app and starts it on a specific device/simulator with the given device id (listed by running "adb devices" on the command line)." }, { "name": "--no-packager", "description": "Do not launch packager while building" }, { "name": "--port [number]", "default": 8081 }, { "name": "--terminal [string]", "description": "Launches the Metro Bundler in a new window using the specified terminal path." }, { "name": "--tasks [list]", "description": "Run custom Gradle tasks. By default it's "installDebug"" }, { "name": "--no-jetifier", "description": "Do not run "jetifier" – the AndroidX transition tool. By default it runs before Gradle to ease working with libraries that don't support AndroidX yet. See more at: https://www.npmjs.com/package/jetifier.", "default": false } ] } ], "assets": [], "platforms": { "ios": {}, "android": {} }, "haste": { "providesModuleNodeModules": [ "react-native" ], "platforms": [ "ios", "android" ] }, "project": { "ios": { "sourceDir": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios", "folder": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "pbxprojPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\green26.xcodeproj\project.pbxproj", "podfile": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\Podfile", "podspecPath": null, "projectPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\green26.xcodeproj", "projectName": "green26.xcodeproj", "libraryFolder": "Libraries", "sharedLibraries": [], "plist": [], "scriptPhases": [] }, "android": { "sourceDir": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app", "isFlat": false, "folder": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "stringsPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\res\values\strings.xml", "manifestPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\AndroidManifest.xml", "buildGradlePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\build.gradle", "settingsGradlePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\settings.gradle", "assetsPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\assets", "mainFilePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\java\com\green26\MainApplication.java", "packageName": "com.green26" } }}
^

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 23s

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081

FAILURE: Build failed with an exception.

Where:
Script 'C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules@react-native-community\cli-platform-android\native_modules.gradle' line: 182

What went wrong:
A problem occurred evaluating script.

Unable to determine the current character, it is not a string, number, array, or object

The current character read is 'C' with an int value of 67
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules\react-native\cli.js{ "root": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "reactNativePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules\react-native", "dependencies": {}, "commands": [ { "name": "log-ios", "description": "starts iOS device syslog tail" }, { "name": "run-ios", "description": "builds your app and starts it on iOS simulator", "examples": [ { "desc": "Run on a different simulator, e.g. iPhone 5", "cmd": "react-native run-ios --simulator "iPhone 5"" }, { "desc": "Pass a non-standard location of iOS directory", "cmd": "react-native run-ios --project-path "./app/ios"" }, { "desc": "Run on a connected device, e.g. Max's iPhone", "cmd": "react-native run-ios --device "Max's iPhone"" }, { "desc": "Run on the AppleTV simulator", "cmd": "react-native run-ios --simulator "Apple TV" --scheme "helloworld-tvOS"" } ], "options": [ { "name": "--simulator [string]", "description": "Explicitly set simulator to use. Optionally include iOS version betweenparenthesis at the end to match an exact version: "iPhone 6 (10.0)"", "default": "iPhone 11" }, { "name": "--configuration [string]", "description": "Explicitly set the scheme configuration to use", "default": "Debug" }, { "name": "--scheme [string]", "description": "Explicitly set Xcode scheme to use" }, { "name": "--project-path [string]", "description": "Path relative to project root where the Xcode project (.xcodeproj) lives.", "default": "ios" }, { "name": "--device [string]", "description": "Explicitly set device to use by name. The value is not required if you have a single device connected." }, { "name": "--udid [string]", "description": "Explicitly set device to use by udid" }, { "name": "--no-packager", "description": "Do not launch packager while building" }, { "name": "--verbose", "description": "Do not use xcpretty even if installed" }, { "name": "--port [number]", "default": 8081 }, { "name": "--terminal [string]", "description": "Launches the Metro Bundler in a new window using the specified terminal path." } ] }, { "name": "log-android", "description": "starts logkitty" }, { "name": "run-android", "description": "builds your app and starts it on a connected Android emulator or device", "options": [ { "name": "--root [string]", "description": "Override the root directory for the android build (which contains the android directory)", "default": "" }, { "name": "--variant [string]", "description": "Specify your app's build variant", "default": "debug" }, { "name": "--appFolder [string]", "description": "Specify a different application folder name for the android source. If not, we assume is "app"", "default": "app" }, { "name": "--appId [string]", "description": "Specify an applicationId to launch after build.", "default": "" }, { "name": "--appIdSuffix [string]", "description": "Specify an applicationIdSuffix to launch after build.", "default": "" }, { "name": "--main-activity [string]", "description": "Name of the activity to start", "default": "MainActivity" }, { "name": "--deviceId [string]", "description": "builds your app and starts it on a specific device/simulator with the given device id (listed by running "adb devices" on the command line)." }, { "name": "--no-packager", "description": "Do not launch packager while building" }, { "name": "--port [number]", "default": 8081 }, { "name": "--terminal [string]", "description": "Launches the Metro Bundler in a new window using the specified terminal path." }, { "name": "--tasks [list]", "description": "Run custom Gradle tasks. By default it's "installDebug"" }, { "name": "--no-jetifier", "description": "Do not run "jetifier" – the AndroidX transition tool. By default it runs before Gradle to ease working with libraries that don't support AndroidX yet. See more at: https://www.npmjs.com/package/jetifier.", "default": false } ] } ], "assets": [], "platforms": { "ios": {}, "android": {} }, "haste": { "providesModuleNodeModules": [ "react-native" ], "platforms": [ "ios", "android" ] }, "project": { "ios": { "sourceDir": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios", "folder": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "pbxprojPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\green26.xcodeproj\project.pbxproj", "podfile": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\Podfile", "podspecPath": null, "projectPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\ios\green26.xcodeproj", "projectName": "green26.xcodeproj", "libraryFolder": "Libraries", "sharedLibraries": [], "plist": [], "scriptPhases": [] }, "android": { "sourceDir": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app", "isFlat": false, "folder": "C:\Users\omidazm\Desktop\web\learning\react-native\green26", "stringsPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\res\values\strings.xml", "manifestPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\AndroidManifest.xml", "buildGradlePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\build.gradle", "settingsGradlePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\settings.gradle", "assetsPath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\assets", "mainFilePath": "C:\Users\omidazm\Desktop\web\learning\react-native\green26\android\app\src\main\java\com\green26\MainApplication.java", "packageName": "com.green26" } }}
^

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 23s

at checkExecSyncError (child_process.js:601:13)
at execFileSync (child_process.js:621:13)
at runOnAllDevices (C:\Users\omidazm\Desktop\web\learning\react-native\green26\node_modules@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:39)
at
at process._tickCallback (internal/process/next_tick.js:188:7)

Steps To Reproduce

1.react-native init project_name
2.react-native run-android

[react-native-bot]

Thanks for submitting your issue. Can you take another look at your description and make sure the issue template has been filled in its entirety?

👉 Click here if you want to take another look at the Bug Report issue template.

[react-native-bot]

Can you run react-native info and edit your issue to include these results under the React Native version: section?

If you believe this information is irrelevant to the reported issue, you may write `[skip envinfo]` alongside an explanation in your Environment: section.

[EnduIf]

After some testing i was able to reproduce the Issue. The problem is your Node version is outdated. The requirement for React-Native is version 8.3 or newer. If you Update everything should be fine. But be careful because of this #26598 issue. The LTS version 10.16.3 should work fine.

[HessiPard]

After some testing i was able to reproduce the Issue. The problem is your Node version is outdated. The requirement for React-Native is version 8.3 or newer. If you Update everything should be fine. But be careful because of this #26598 issue. The LTS version 10.16.3 should work fine.

I had this problem and updating node to v12.13.0 LTS solved error.

[HessiPard]

After some testing i was able to reproduce the Issue. The problem is your Node version is outdated. The requirement for React-Native is version 8.3 or newer. If you Update everything should be fine. But be careful because of this #26598 issue. The LTS version 10.16.3 should work fine.

I had this problem and updating node to v12.13.0 LTS solved error.

As @NyauIf mentioned, v12.13.0 LTS causes this error#26598.
Latest working version of node is v12.10.0

[omidazm94]

thank you for your answers. problem was nodejs and i tried to update node and i get "can't read property 'resolve'" error. so i used this page and fixed it.
https://stackoverflow.com/questions/50597159/npm-err-asyncwrite-is-not-a-function/53985680#53985680
(Solution for windows platform
Uninstall Node
Delete folder from programfiles if exist (C:\Program Files\nodejs)
Delete npm's data folder: C:\Users{Your uername}\AppData\Roaming\nmp
Install node Again(use different installation folder like "C:\Program Files\nodejs-2")
Root cause is node and nvm installed in same installation folder.)
now i can use react-native latest version :-))

[shahbazhaider]

React Native Sucks

I am unable to ran even a simple project
Worst Technology i have ever used..
Getting same error .

please help ,

Error........................

info Running jetifier to migrate libraries to AndroidX. You can
disable it using "--no-jetifier" flag.
Jetifier found 863 file(s) to forward-jetify. Using 4 workers...info JS server already running.
'C:\Users\Shahbaz' is not recognized as an internal or external
command,
operable program or batch file.
info Launching emulator...
'C:\Users\Shahbaz' is not recognized as an internal or external
command,
operable program or batch file.
'C:\Users\Shahbaz' is not recognized as an internal or external
command,
operable program or batch file.
error Failed to launch emulator. Reason: Emulator exited before
boot..
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...
The system cannot find the path specified.
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
The system cannot find the path specified.
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain

at checkExecSyncError (child_process.js:629:11)
at execFileSync (child_process.js:647:13)
at runOnAllDevices (E:\study & work\Work Space\React Native Work\Test\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:39)
at process._tickCallback (internal/process/next_tick.js:68:7)

[EnduIf]

Hi @shahbazhaider, yes your problem looks similar. Older NodeJs versions apparently have Problems with spaces in the path. Are you able to provide your NodeJs version with node -v ? You should have a version newer then NodeJs v8.3. The NodeJs v10.15.2 should work fine. But be Careful with your version because of this #26598 issue. If the Problem also occurs on the NodeJs v10.15.2 feel free to text me.

[saravanaams]

Hi Team,
I have updated my node to 10.17.0. Still i'm facing the error.

npx react-native info

System:
OS: Windows 10
CPU: (4) x64 Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
Memory: 7.89 GB / 15.91 GB
Binaries:
Node: 10.17.0 - C:\Program Files\nodejs\node.EXE
npm: 6.11.3 - C:\Program Files\nodejs\npm.CMD
IDEs:
Android Studio: Version 3.5.0.0 AI-191.8026.42.35.5977832
npmPackages:
react: 16.9.0 => 16.9.0
react-native: 0.61.4 => 0.61.4

Error

[satyadaraviteja]

heloo bro same problem facing ...space in folder path

[fabOnReact]

please close this, this has nothing to do with react native

You did not follow the instructions at https://reactnative.dev/docs/environment-setup and did not install correct node version

Even if you did follow correct instructions, you stll had to open the issue in nodejs repository and not facebook/react-native

[Rbayat75]

I have a error
please help me

info Starting JS server...
The system cannot find the path specified.
info Launching emulator...
error Failed to launch emulator. Reason: No emulators found as an output of emulator -list-avds.
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...
Downloading https://services.gradle.org/distributions/gradle-6.2-all.zip

Exception in thread "main" java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 403 Request blocked by Privoxy"
at sun.net.www.protocol.http.HttpURLConnection.doTunneling(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at org.gradle.wrapper.Download.downloadInternal(Download.java:78)
at org.gradle.wrapper.Download.download(Download.java:63)
at org.gradle.wrapper.Install$1.call(Install.java:68)
at org.gradle.wrapper.Install$1.call(Install.java:48)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
at org.gradle.wrapper.Install.createDist(Install.java:48)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
Exception in thread "main" java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 403 Request blocked by Privoxy"

[AlphaJuliettOmega]

This is not fixable by using a specific Node Version, I'm going to try move my Node install to a path without a space.

$ node -v
v14.15.0

[AlphaJuliettOmega]

Yeah, that did it, thank you @omidazm94

[udaraliyanage96cs]

hy i have same issue.. how did you fix it

[esteves-esta]

On my case it was the space on the path name in the config file of node/npm.

1. I used the command npm config get prefix to check if the path had an space in it
2. Used the command cmd /c dir /x on the parent folder to get the short name of the folder that I wanted, on my case i used it on the "C:\Users" folder to get my user folder name.
3. Used the command npm config set prefix "C:\Users\{SHORT FOLDER NAME}"