can't show variable values in a popup

[Kevin.Yao]

HI
Today I want to debug one package.
first I run the below command to open the debug mode.
alter package xx compile debug;

And then I open a Test Window to debug it.
But it's very strange, when I move the mouse cursor over the variable in the source, I can't see the input parameter values in a popup.

At first,I suspect that the developer tools is broken, so I test another package, the result is that I can see the parameters.

I'm confuse about that. Does the developer tools have some limited on package size? Or do I miss something?
could you help me to fix it?

The PL/SQL Developer version:9.0.3
The Oracle DB version: 11.2.0.2.0
thank you.

 

[Theod]

Hi,

try this

alter package xy PLSQL_DEBUG = TRUE;

I'm using this with the browser extender plugin
alter #otype #oname compile PLSQL_DEBUG = TRUE