When exporting labels in Raiser's Edge by the process: Mail > Labels > highlight labels and click the Export Now button, or selecting File > Export from the menu bar > make Format: Acrobat Format and leave Destination: Disk File > choose an export location either in Files folder or locally - the above error is encountered.  

When previewing the labels first - click to open desired labels > click the Preview button > click the Export Report button, upper left >  make Format: Acrobat Format and leave Destination: Disk File > choose an export location either in Files folder or locally - the export will appear to run but will not export a file to the mapped location. 

We are currently evaluating this situation and will update this Knowledgebase as discoveries are made. The error may be due to certain fields, such as address bar codes, being included in the label. The labels will still export correctly using either method as CSV and other file formats.