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Error PLS-00306: wrong number or types of arguments in call to 'WWV_FLOW_T_PLUGIN_ATTRIBUTES' while importing apex applicatio

Gerardus E3 days ago

I created an application in Oracle APEX and encountered the following error while trying to re-import it:

ORA-06550: line 6, column 16: PLS-00306: wrong number or types of arguments in call to 'WWV_FLOW_T_PLUGIN_ATTRIBUTES'

Here’s what I did step by step:

In Workspace A (which has a workspace–schema mapping to schema B), I created a new application using the wizard.
I didn’t add any pages — I only provided an application name and clicked Create Application.
I then changed the parsing schema to B.
I exported the application.
I deleted the application from the workspace.
When I tried to re-import the exported application, I got the error above.

The only unusual aspect is that the parsing schema (B) is not the same as the schema where the workspace is installed (A).

Is this a known bug in APEX?

When I create an application and do not change the parsing schema, the importing works as expected and I do not get the error message.