ASR can´t installed

Hello,
May be you can help me. I am installing SUWsftptransport but I have de following messages:

Webserver port [80]: [?] 80
## Executing checkinstall script.
/var/tmp//installjhaWsV/checkinstallnhaWsV: /dev/null: cannot create
***************************************************************
Prerequisite package SUNWsasm (Oracle Automated Service Manager)
must be installed in order to continue the installation.
***************************************************************
pkgadd: ERROR: checkinstall script did not complete successfully

Installation of <SUNWsftransport> failed.
No changes were made to the system.

Actually SUNWsasm is installed:

root@sunmc01 # pkginfo -l SUNWsasm
   PKGINST:  SUNWsasm
      NAME:  Oracle Automated Service Manager
  CATEGORY:  application
      ARCH:  all
   VERSION:  1.4.1
   BASEDIR:  /
    VENDOR:  Oracle Corporation
      DESC:  Oracle Automated Service Manager
    PSTAMP:  20130227241819
  INSTDATE:  Mar 06 2013 08:59
   HOTLINE:  visit