resin iptables not found

Building JSON manifest...
up to date in 0.149s
...Done
You had no conf/local.conf file. This configuration file has therefore been
created for you with some default values. You may wish to edit it to, for
example, select a different MACHINE (target hardware). See conf/local.conf
for more information as common configuration options are commented.

You had no conf/bblayers.conf file. This configuration file has therefore been
created for you with some default values. To add additional metadata layers
into your configuration please add entries to conf/bblayers.conf.

The Yocto Project has extensive documentation about OE including a reference
manual which can be found at:
    http://yoctoproject.org/documentation

For more information about OpenEmbedded see their website:
    http://www.openembedded.org/


### Shell environment set up for builds. ###

You can now run 'bitbake <target>'


  _____           _        _____   ____  
 |  __ \         (_)      /  _  \ / ___| 
 | |__) |___  ___ _ _ __  | | | || (___  
 |  _  // _ \/ __| | '_ \ | | | | \___ \ 
 | | \ \  __/\__ \ | | | || |_| |  ___) |
 |_|  \_\___||___/_|_| |_|\_____/ |____/ 
                                         
 ---------------------------------------- 

Resin specific images available:
	resin-image-flasher

Intel NUC                                : $ MACHINE=genericx86-64 bitbake resin-image-flasher

[000000001][LOG]Resin build initialized in build.
[000000001][LOG]Run build for genericx86-64: MACHINE=genericx86-64 bitbake resin-image-flasher 
[000000001][LOG]This might take a while ...
ERROR: The following required tools (as specified by HOSTTOOLS) appear to be unavailable in PATH, please install them in order to proceed:
  iptables
[000000001][LOG]Build for genericx86-64 failed. Check failed log in build/tmp/log/cooker/genericx86-64 .
[000000001][LOG]If build for genericx86-64 succeeded, final image should have been generated here:
[000000001][LOG]   build/tmp/deploy/images/genericx86-64/resin-image-flasher-genericx86-64.resinos-img
[000000001][LOG]Done.