Yocto镜像未将文件添加到rootfs

我想在“/etc”中创建一个新文件夹,如下所示

/etc
----/shared
-----------example.txt

我在自定义yocto层中创建了一个新配方。食谱在文件夹下 meta-own\recipes-own\shared 以及结构 recipes-own 是:

.
├── files
│   ├── example.txt
└── shared_configuration_1.0.bb

配方是:

DESCRIPTION = "Script for copying example configurations"
SUMMARY = "example configurations"
LICENSE = "CLOSED"

SRC_URI = "file://example.txt"

do_install_append() {
    install -dm644 ${D}${sysconfdir}/shared
    install -m 0755 ${WORKDIR}/example.txt ${D}${sysconfdir}/example.txt

FILES_${PN} = "\
    ${sysconfdir} \
"

当我将食谱添加到我的 recipes-core/images/example-image.bb :

IMAGE_INSTALL_append = " \
    bash \
    util-linux \
    shared_configuration \
    "

它总是输出我:

ERROR: Nothing RPROVIDES

但是,如果我没有将其放置在示例图像中,则它正在运行,但文件没有被复制。