将别人代码加进来显示has no member named怎么办

[saddoudou]

大佬们看一下，小白不懂

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent), imposeIndex(0),

    ui(new Ui::MainWindow) {

    this->setAttribute(Qt::WA_QuitOnClose,true);

    //程序启动就开始计时

    time.start();

    ui->setupUi(this);

    this->setGeometry(200,30,this->width(),this->height());

    ui->leMemory->setText(getRAM());

    ui->leSystemRuntime->setText(getSystemTime());

    ui->leProgramRuntime->setText(getProcedureTime());

ui文件：

 我的ui文件里有对应名字的