HarmonyOS abiliteDeletator.executeShellCommand(string, number)执行命令行失败

let name2 = cxt.filesDir + "/111.jpeg" 
let cmd2 = 'snapshot_display -f '+ name2; 
let shellCmdResult = await abiliteDeletator.executeShellCommand(cmd2, 1); 
logger.info('shellCmdResult '+JSON.stringify(shellCmdResult), '' + (new Date().getTime() - t2)); 
let snapShot = fs.accessSync(name2); 
logger.info('file snapShot '+snapShot, '')
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