grails rendering plugin incompatible return type issue

Question

I am working on a grails 3 (grails version 3.2.3, java version 1.8) project where it needs to convert a gsp into a pdf. I tried to use the rendering plugin provided by grails. I imported the plugin using: compile 'org.grails.plugins:rendering:2.0.3' in my build.gradle file

and in my controller i used:

ByteArrayOutputStream bytes = pdfRenderingService.render(template: "/templates/pdf_PI", model: [proformaInvoice: proformaInvoice])

to render the pdf. The service is injected using def pdfRenderingService

however im getting this error

grails-app/controllers/chsam/re/ProformaInvoiceController.groovy: -1: The return type of java.lang.Object getPdfRenderingService() in chsam.re.ProformaInvoiceController is incompatible with grails.plugins.rendering.pdf.PdfRenderingService in grails.plugins.rendering.RenderingTrait. At [-1:-1]  @ line -1, column -1.

I spent hours trying to get this plugin to work but it just won't work. Please help.

Answer 1

Solved this issue by explicitly using types when declaring the service. Instead of def pdfRenderingService use PdfRenderingService pdfRenderingService .

Works on grails 3.2.11, using org.grails.plugins:rendering:2.0.3