arm-poky-linux-gnueabi-strip:nginx: File format not recognized

This error message suggests that the "arm-poky-linux-gnueabi-strip" command is unable to recognize the file format of the "nginx" file. It could be due to a corrupted or incompatible file format.

To resolve this issue, you can try the following steps:

1. Check if the file exists and is accessible by the user running the command.
2. Check if the file is in a supported format for the "arm-poky-linux-gnueabi-strip" command.
3. Try running the command with elevated privileges using "sudo" or "su" command.
4. Make sure that you are using the correct version of the "arm-poky-linux-gnueabi-strip" command that is compatible with the file format.
5. If none of the above steps work, try reinstalling the "arm-poky-linux-gnueabi-strip" command or the package that contains it.