Launching a window causes error 566 concerning buffer sysa

Question

Inside a window, I try to open another window, like this:

RUN "OtherWindow.w":U (
INPUT        E-Par1,
...
INPUT-OUTPUT E-Par4,
...
INPUT        E-Par11
).

Usually, this works fine, but now I get error 566 concerning buffer sysa .

There exists a table sysa , but I don't see the link between that table and the current error message.

In top of this, the first line of my OtherWindow.w looks as follows:

MESSAGE "first line" VIEW-AS ALERT-BOX.

I don't see that message, so my second window does not even get opened. That second window has been compiled and the corresponding *.r file is present in the same directory as the *.r file of the first window.

Does anybody know what this means? Is the mentioned buffer sysa related to my table sysa or is this just a coincidence?

Thanks in advance

Answer 1

Error 566 indicates here be monsters:

<program> Unable to find shared buffer for <buffer>. (566)

You used a DEFINE SHARED BUFFER <name> statement in a program.  
When you ran the program, no existing buffer <name> was found. 

The program you are attempting to run has a define shared buffer statement. Which will compile just fine.

But at run time, if the shared buffer has not been defined before the call with define new shared buffer will result in error 566.

Note that shared is an archaic construct that stems from before parameters could be passed to procedures. It can be also be (ab)used for variables.