No bb files found in layer - yocto

Question

I am new to Yocto and doing some starter projects. I have added my own layer called meta-tutorial .
I have the following recipe file inside my layer at meta-tutorial/recipe-example/hello/hello_1.0.bb
DESCRIPTION = "Simple helloworld application"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
SRC_URI = "file://hello.c"
S = "${WORKDIR}"
do_compile() {
${CC} hello.c ${LDFLAGS} -o hello
}
do_install() {
install -d ${D}${bindir}
install -m 0755 hello ${D}${bindir}
}
The hello.c source file is located at meta-tutorial/recipe-example/hello/files/hello.c
When I source the oe-init-build-env script , and try to build my recipe as follows bitbake hello_1.0.bb, I encounter the following issues :
WARNING: No bb files in default matched BBFILE_PATTERN_meta-tutorial '^/home/Yocto-test/poky/meta-tutorial/'
ERROR: Nothing PROVIDES 'hello_1.0.bb'
What is the problem here exactly, it's not clear?

Answer 1

A Yocto layer have a configuration file that describes where to look for recipes .bb and recipes append files .bbappend:
meta-tutorial/conf/layer.conf:
...
BBFILES += "${LAYERDIR}/recipes-*/*/*.bb ${LAYERDIR}/recipes-*/*/*.bbappend"
^
|
(Look closely)-----------------
...
so, your mistake is that you put your recipe under the path:
meta-tutorial/recipe-example/hello
^
|
(The mistake)-------
So, your recipe should be under:
meta-tutorial/recipes-example/hello
^
|
(Correction)---------