QT内置append函数报错怎么办

QT
使用QVector类，内置函数append报错
D:\QT\5.12.10\mingw73_64\include\QtCore\qvector.h:676: error: variable or field 'append' declared void
In file included from ....\5.12.10\mingw73_64\include\QtCore/QVector:1:0,
from ..\Car\adddialog.h:3,
from ..\Car\adddialog.cpp:1:
....\5.12.10\mingw73_64\include\QtCore/qvector.h:676:25: error: variable or field 'append' declared void
void QVector::append(constT &t)
^~~~~~

D:\QT\5.12.10\mingw73_64\include\QtCore\qvector.h:676: error: 'constT' was not declared in this scope

D:\QT\5.12.10\mingw73_64\include\QtCore\qvector.h:676: error: 't' was not declared in this scope
....\5.12.10\mingw73_64\include\QtCore/qvector.h:676:33: error: 't' was not declared in this scope
void QVector::append(constT &t)
^
不知道怎么解决求帮助
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看看代码, 说不定是你输入的类型错了

append追加是没得问题的，要看你代码是怎么写的。

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