This article describes why you can get warning message "There are no compatible reports in this exported project" while importing templates from Nprinting 16 to 17.
Basic steps on how to export files from NP 16 and import them to NP 17 are described here:http://help.qlik.com/en-US/nprinting/17.3/Content/ReportsDevelopment/Import-reports.htm
The reason why you can sometimes during the import get the warning message shown above is because to import the reports the QlikView entities used in the NP16 reports must be the same that are used in NP17.
The problem usually happens when a report contain an old object that was changed in the QlikView document but not updated in NPrinting.
Any modification of objects in the Qlikview document can block the import.
1. Have the steps been taking in following article: How To Export NP 16 Templates and Import to NP 17
2. Are all Tables/Fields in the report up to date. Check this by selecting the table(s) in the NPrinting template and right click (UPDATE).
3. Unzip the exported file on the NPrinting 17.x server and select the .nsq file to import.
Note, if the exported zip file contain more then one nsq file, one of the nsq could contain old objects/fileds.
If so, please remove the old template from the NPrinting 16 report and export the project again.