qmake不复制文件（安装）

Question

我有一个Qt控制台应用，带有以下.pro文件：

QT -= gui

CONFIG += c++11 console
CONFIG -= app_bundle

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
        main.cpp

DISTFILES += \
    data.txt

data_files.path = $$OUT_PWD
data_files.files = data.txt
INSTALLS += \
        data_files

从我的.pro文件中可以看到，项目文件夹中有两个文件：main.cpp和data.txt

我想从源文件夹中复制data.txt以构建输出文件夹，并且我知道我的问题已经安装了。

.pro有什么问题？