/bin/sh: Can't open opp_makedep "help with this error message"
 

I was trying to install a programm and ran to the following error message:

root@banlaptop:/home/src/simproctc/simproctc-0.9.5# cd /home/src/simproctc/simproctc-0.9.5/demo
root@banlaptop:/home/src/simproctc/simproctc-0.9.5/demo# opp_makemake -f -u Tkenv
Makefile created, adding dependencies...
/bin/sh: Can't open opp_makedep
Error: command 'opp_makedep -Y --objdirtree -fMakefile -- *.cc' returned nonzero exit code
root@banlaptop:/home/src/simproctc/simproctc-0.9.5/demo#



Anyone on suggestions on possible cause(s) for the error messages and how I should move on.
Thanks.

Well, the error message is, I think, fairly clear: The opp_makemake shell program has tried to run the secondary opp_makedep shell program to create the dependency list needed to run the make shell script that it had just finished creating. When it tried to do so, the shell could not find the opp_makedep script in the demo directory.

To proceed you will need to find and install the opp_makedep script, which should have been created when you unpacked the simproctc-0.9.5 compressed file. (Note: I haven't bothered to figure out what simproctc actually is: I'm just commenting on the error message meaning.)

Anyhow, you could look in the other subdirectories of /home/src/simproctc/ for that program. (Try the command find /home/src/simproctc/ | grep makedep to look for it.) If you find it, use the cp command to copy it into the demo directory.

Note 2: Usually the command man <command> or info <command> will describe how a command works, often in more detail that you really want to know.