"error: environment PATH invalid path: ." with Building a Tools set with RTEMS

[Alvin Dulcan]

When I try to do the first step of a quick start on https://devel.rtems.org/wiki/Developer/Tools/RSB:
$ cd
$ mkdir -p development/rtems/rsb
$ cd development/rtems/rsb
$ git clone git://git.rtems.org/rtems-source-builder.git
$ cd rtems-source-builder
$ cd rtems
$ ../source-builder/sb-set-builder --prefix=$HOME/development/rtems/4.11 4.11/rtems-sparc

I get:
cat rsb-log-20150629-184804.txt
RTEMS Source Builder - Set Builder, v0.5.0
Command Line: ../source-builder/sb-set-builder --prefix=/home/itacs/development/rtems/4.11 4.11/rtems-sparc
Python: 2.6.6 (r266:84292, Jun 18 2012, 14:18:47) [GCC 4.4.6 20110731 (Red Hat 4.4.6-3)]
error: environment PATH invalid path: .

I installed all of the packages for CENTOS (release 6.2)

Thanks,
Alvin
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