Error when creating deploy package 5.17

I have converted an app from 5.15 to 5.17. When making a deploy package, the following error appears: Could not bundle your widgets. This may be due to outdated widgets in your project. Please update all your widgets and check the Mendix release notes for any known issues. Update All widgets via right-clicking a widget and 'Update all widget' doesn't help. The app contains quiet a few widgets, so it is hard to isolate the cause. The release notes between 5.15 and 5.17 do not help. Any suggestion?
1 answers

Hi Thijs,

The release notes from 5.16

During the build custom widget are bundled. This step involves compiling the widgets against the official client API as documented here: Widgets that use undocumented functions of the mendix client will cause this step to fail and thus the project build to fail. You can use the logfile generated while bundling the widget resources to determine the cause of the problems. This logfile is available in your project in deployment/data/tmp/dojo/build-report.txt.

So check the build report and you will know which widget is troubeling you (section errors)