Why Error: Command 'xxx' not found?

1

In my Makefile，I’ve installed the final binary to /app/bin/xxx

image

id: com.example.xxx
runtime: org.freedesktop.Platform
runtime-version: '23.08'
sdk: org.freedesktop.Sdk//23.08
command: xxx

Why flatpak still report error: Error: Command 'xxx' not found?

Could anyone give me the reference document?

2

You will probably need to post the whole thing or a repo

3

My com.example.xxx.yml

id: com.example.xxx
runtime: org.freedesktop.Platform
runtime-version: '23.08'
sdk: org.freedesktop.Sdk//23.08
# sdk-extensions:
command: xxx

modules:
  - name: xxx
    buildsystem: autotools
    no-autogen: true
    make-install-args:
      - Build_Flatpak=true
    sources:
      - type: dir
        path: "../"
    post-install:
      - echo "------------------"
      - ls "$FLATPAK_DEST/bin"
      - echo "------------------"

My Makefile

install:
ifeq ($(Build_Flatpak), true)
	@mkdir /app/bin
	@mv xxx /app/bin/
else
	@mv xxx /usr/bin/
endif

This is what I invoke to build:

$ flatpak run org.flatpak.Builder --force-clean --install --install-deps-from=flathub ../flat-build ./com.example.xxx.yml