minicom @2.7 Error: rev-upgrade failed: can't read "{os.platform}": no such variable

[bustamitenator@…]

I have recently installed macports to which i am a big fan. I have had no issues on my previous mac running MAC OSX Yosemite ( Macbook Pro mid 2011 ), i have just bought a new Macbook Pro mid 2015 Model Identifier:MacBookPro11,5

I installed xcode then command line tools as well as developer tools then Macports . Install was easy enough , i used the source download to install 1st time round.. i made sure my profile path was updated.

My Profile :-

#!/usr/bin/bash
# MacPort
export PATH="/opt/local/bin:/opt/local/sbin:$PATH"

I also installed Quartz as i do use this a fair amount ..

OS = MAC OSX Yosemite 10.10.5
Xcode = Xcode 7 Beta
Command line Tools = Command Line Tools OSX 10.10 for Xcode 7 beta 6
Quartz = XQuartz-2.7.7
MacPorts = MacPorts-2.3.3.tar.bz2

I then tried to install minicom @2.7 & i got this output from my screen :-

Jimbo:base Jimbo$ sudo port install minicom
--->  Computing dependencies for minicom
--->  Cleaning minicom
--->  Scanning binaries for linking errors
--->  Found 3 broken files, matching files to ports
--->  Found 1 broken port, determining rebuild order
You can always run 'port rev-upgrade' again to fix errors.
The following ports will be rebuilt: minicom @2.7
Continue? [Y/n]: Y
Error: rev-upgrade failed: can't read "{os.platform}": no such variable
Error: Follow http://guide.macports.org/#project.tickets to report a bug.

Jimbo:base Jimbo$ sudo port rev-upgrade
--->  Scanning binaries for linking errors
--->  Found 3 broken files, matching files to ports
--->  Found 1 broken port, determining rebuild order
You can always run 'port rev-upgrade' again to fix errors.
The following ports will be rebuilt: minicom @2.7
Continue? [Y/n]: Y
Error: rev-upgrade failed: can't read "{os.platform}": no such variable
Error: Follow http://guide.macports.org/#project.tickets to report a bug.

This is from the log file :-

version:1
:msg:clean --->  Computing dependencies for pkgconfig:msg:clean 
:debug:clean pkgconfig has no conflicts
:debug:clean Searching for dependency: libiconv
:debug:clean Found Dependency: receipt exists for libiconv
:debug:main Executing org.macports.main (pkgconfig)
:debug:main changing euid/egid - current euid: 0 - current egid: 0
:debug:main egid changed to: 501
:debug:main euid changed to: 502
:debug:main Skipping completed org.macports.archivefetch (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.fetch (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.checksum (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.extract (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.patch (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.configure (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.build (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.destroot (pkgconfig)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:install install phase started at Tue Sep  8 14:45:38 BST 2015
:notice:install --->  Installing pkgconfig @0.28_0
:debug:install Can't run install on this port without elevated privileges. Escalating privileges back to root.
:debug:install euid changed to: 0. egid changed to: 0.
:debug:install Executing org.macports.install (pkgconfig)
:debug:install Using /usr/bin/tar
:debug:install Using /usr/bin/bzip2
:error:install org.macports.install for port pkgconfig returned: no destroot found at: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_pkgconfig/pkgconfig/work/destroot
:debug:install Error code: NONE
:debug:install Backtrace: no destroot found at: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_pkgconfig/pkgconfig/work/destroot
    while executing
"create_archive $location $portarchivetype"
    (procedure "portinstall::install_main" line 22)
    invoked from within
"portinstall::install_main org.macports.install"
    ("eval" body line 1)
    invoked from within
"eval $procedure $targetname"
:info:install Warning: targets not executed for pkgconfig: org.macports.activate org.macports.install
:notice:install Please see the log file for port pkgconfig for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_pkgconfig/pkgconfig/main.log
/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_pkgconfig/pkgconfig/main.log (END) 

I have looked around on your ticket system for other similar issues but cannot seem to narrow any of them down to a particular remedy.
I am hoping this is an easy enough one for you to remedy & point me in the right direction...

Thanks in advance
Regards
Jimbo :)

[ryandesign (Ryan Carsten Schmidt)]

I am not certain whether "can't read "{os.platform}": no such variable" is a relevant or correct error. MacPorts sometime prints an incorrect error at the end of a failed operation. I don't know what port it thinks the problem is in. os.platform is a variable that exists in MacPorts. Only a handful of ports use it, and glancing at the code I don't see any that use it improperly. So I am inclined to ignore this error.

The error "org.macports.install for port pkgconfig returned: no destroot found at: ..." is definitely relevant. This error means you must clean the affected port and try again. In this case: run "sudo port clean pkgconfig". Cleaning and trying again is the first thing you should do anytime any port fails.

Ports should not normally be broken. I suspect the reason why MacPorts thinks minicom is broken on your system is that minicom uses ncurses, though it does not declare a dependency on it, and so it needs to be rebuilt following the recent update of ncurses to version 6. I fixed this in r140150. To receive this change, wait 30 minutes, then run "sudo port selfupdate". Then you can "sudo port upgrade outdated" to rebuild minicom.