*Error* eval: undefined function - proc

Hi,

I am trying to execute a command with ipcBeginProcess but in some machines
I get this error.

*Error* eval: undefined function - proc

I am using 4.4.6.100.66m. Can you help me to fix this problem?

Thanks Indeed.

 

How exactly are you invoking ipcBeginProcess?

Andrew.

 

Here is the code


if(simDir
then
workingDir = simDir
else
workingDir = strcat(getWorkingDir() "/simDir")
)
workingDir = simplifyFilename(strcat(workingDir "/"
cdfgData~>id~>lib~>name "/" cdfgData~>id~>name))

command = strcat("xv " workingDir "/*.gif")
ipc = ipcBeginProcess(command)

 

Are you sure that's where the error is coming from?

Can you do:

sstatus(stacktrace 20)

and see what the stacktrace shows when the error occurs? (post it here).

Thanks,

Andrew.

 

Sorry Andrew, but I do not have any access to the machines. But this
is a cdf callback function. Full callback function is as follows.

procedure(displayGifs()
prog( (workingDir command ipc)
if(simDir
then
workingDir = simDir
else
workingDir = strcat(getWorkingDir() "/simDir")
)
workingDir = simplifyFilename(strcat(workingDir "/"
cdfgData~>id~>lib~>name "/" cdfgData~>id~>name))
unless(isDir(workingDir) return(nil))
command = strcat( "xv " workingDir "/" cdfgData~>id~>name "*.gif")
ipc = ipcBeginProcess(command)
unless(ipc
puts("Unable to Run XV")
return(nil)
)
)
)

Can this problem depends on the shell settings ???

 

I wouldn't have thought so (that it would depend on shell settings). Having the
stacktrace would really help to debug the problem.

Andrew.

 

just a guess, you could try writing the
whole ipcBeginProcess statement

ipcBeginProcess( command "" nil nil nil nil )

also

if( boundp('simDir) && simDir then ...

because i guess you check wether simDir is defined
and if it isn't you'll get an error.

also, are you sure you didn't misspelled
prog as proc ?
and you reload your skill file after each
change ? (i do not mean to insult you)

cheers
stéphane

 

Hi Stéphane,

simDir is always defined but thanks for your advice.
I am sure about the proc. I saw it 2-3 times.
Of course, I am reloading my skill functions after making changes.

Thanks for every one for help.

 

If you're seeing the errors, then you should be able to get the stack trace like
I suggested.

That's going to be the best way of giving us a clue as to what is going on.

Otherwise it's like trying to find out what is wrong with a car when you:

a) can't see the car
b) don't know what make it is
c) have somebody describing the sound it makes when the problem occurs,
over a poor phone line, with a cold.

Andrew.