Error while running android in ionic

Hi all, I’m a beginner in ionic and I’m having this problem

C:\Users\djeko\jaitrouve>ionic cordova build android
> cordova.cmd platform add android --save
C:\Users\djeko\jaitrouve\node_modules\execa\index.js:347
** throw err;**
** ^**

Error: Command failed: wmic os get Caption
ou externe, un programme ex�cutable ou un fichier de commandes.

** at makeError (C:\Users\djeko\jaitrouve\node_modules\execa\index.js:174:9)**
** at Function.module.exports.sync (C:\Users\djeko\jaitrouve\node_modules\execa\index.js:338:15)**
** at windowsRelease (C:\Users\djeko\jaitrouve\node_modules\windows-release\index.js:34:24)**
** at osName (C:\Users\djeko\jaitrouve\node_modules\os-name\index.js:39:18)**
** at new Insight (C:\Users\djeko\jaitrouve\node_modules\insight\lib\index.js:37:13)**
** at Object. (C:\Users\djeko\jaitrouve\node_modules\cordova\src\telemetry.js:26:15)**
** at Module._compile (internal/modules/cjs/loader.js:776:30)**
** at Object.Module._extensions…js (internal/modules/cjs/loader.js:787:10)**
** at Module.load (internal/modules/cjs/loader.js:653:32)**
** at tryModuleLoad (internal/modules/cjs/loader.js:593:12)**
[ERROR] An error occurred while running subprocess cordova.

** cordova.cmd platform add android --save exited with exit code 1.**
** Re-running this command with the --verbose flag may provide more information.**

I do not understand