Cannot find package (ipkg)

when you using ipkg package management tool,you encountered the following problem

An error ocurred, return value: 4.
Collected errors:
Cannot find package module-init-tools-cross-stage.
Check the spelling or perhaps run 'ipkg update'
Cannot find package update-modules-stage.
Check the spelling or perhaps run 'ipkg update'


however,the package is there

the reason is that the arch is not compatible