Cause

You created a macro in the source project and added it to the target project (current project). The macro contains information about the symbol library <x> stored in the source project, from which you selected the symbols for the macro. Furthermore it contains details of the position <y> of the stored symbol library, set in the source project settings . This information is compared to the relevant settings in the target project when inserting the macro. In a concrete case the symbol library <x> cannot be generated in the position <y> in the target project, because it isn't stored there.

Solution

1. Store the symbol library searched for at the desired position in the current project.
2. Select the following commands: File > Settings > Projects > "Project name" > Management > Symbol libraries.
3. In the dialog Settings: Symbol libraries in the Symbol libraries field select the position (row) <y>.
4. In the field, click [...].
5. In the next dialog, select the missing symbol library. Click [Open].
   
   The symbol library is stored at the desired position in the target project.
6. Delete the macro in the target project and add it in again.