QProcess read nothing when It start wmic

I use wmic like the following code.But It start this cmd error,and return after call p.waitForStarted.

Does sb kown why?

Code:

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QString cmdTask = "wmic.exe /OUTPUT:STDOUT  process where name=\"startServer.exe\" get executablepath";
QStringList output = execute(cmdTask);

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Code:

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QStringList execute(const QString &cmd)  {
    QProcess p;
    p.start(cmd);
    if (!p.waitForStarted())  {
        return QStringList();
    }
 
    if (!p.waitForFinished())  {
        return QStringList();
    }
    int res = p.exitCode();
    if (res)  {  //error
        return QStringList();
    }
    QByteArray data = p.readAllStandardOutput()
 
    QString ds = QString::fromLocal8Bit(data);
 
    QStringList out = ds.split("\r\n");
 
    return out;
}

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