Why do I get "File not valid" when I run the debugger?

Say I have the following structure:

/top/src/myprog.cbl
/top/cpy/mycpy.def
/top/obj/

the obj directory is where I want my class files to go, and myprog.cbl has COPY "mycpy.def"

Suppose I compile from the top directory with:

iscc -sp=cpy -od=obj src/myprog.cbl

When I try to debug the program from the obj directory with "isrun -d MYPROG" the debugger reports the "File not valid" error even if "iscobol.debug_code_prefix=src;cpy" or "iscobol.debug_code_prefix=/top/src;/top/cpy" and even if CLASSPATH has ";src;cpy" or ";/top/src;/top/cpy"

Answer:

This is because you compiled with "-sp=cpy" and the debugger searches each of the directories in CLASSPATH and iscobol.debug_code_prefix for "cpy/mycpy.def" not for "mycpy.def"

There are two ways to eliminate this error:

Specify the full path to your copybook directories in the -sp value
Add the path of the parent directory to CLASSPATH or iscobol.debug_code_prefix

Note that with option 2 you do NOT add the copy directories themselves to the CLASSPATH or iscobol.debug_code_prefix. Instead, you add the absolute or relative path of the parent directory.

In the above example, the debugger searches for "cpy/mycpy.def" so you would add "/top" to CLASSPATH or iscobol.debug_code_prefix. The debugger will search for "cpy/mycpy.def" in "/top", thus "/top/cpy/mycpy.def" and will then be able to find the file.