<!--To help us understand and resolve your issue, please fill out the form to the best of your ability. Feel free to delete the sections that do not apply.--> **Description of the problem** <!-- Please be as detailed as you can when describing an issue. The more information we have, the easier it will be for us to track this down. --> **Full script that generated the error** <!-- It helps a lot if you share any data files required to run your script. You can drag-and-drop them here or paste a link to Dropbox/GoogleDrive/etc. --> ``` # PASTE CODE HERE ``` **Full error message** <!-- Tip: you'll get more detailed error messages if you add -Vd to your gmt commands. --> ``` # PASTE ERROR MESSAGE HERE ``` **Actual outcome** <!--The output produced by the above script, which may be a screenshot, console output, etc.--> **Expected outcome** <!--A description of the expected outcome from the above script.--> **System information** * Operating system: * GMT version (`gmt --version`): what happens