[yocto] Error while building a custom image

[Ashish Dalela]

Hi,

I am new to the Yocto project and trying to build a custom image (I have
built the standard images - e.g. core-image-basic and run them).

I added a meta-mylayer directory in the poky directory and added a recipe
for a component "tpmc". Then I modified the core-image-basic recipe and
added a packagegroup-tpmc. This packagegroup is defined to build and
package my component "tpmc". The packagegroup is defined in the
yocto:~/poky-dylan-9.0.2/meta/recipes-extended/packagegroups directory.

When I build the core-image-basic, at the end (while executing do_rootfs) I
see the below error:

*| Computing transaction...error: Can't install packagegroup-tpmc-1.0-r6 at all:
no package provides tpmc*

What am I doing wrong? Any hints anyone can give me?

Thanks
-Ashish
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