I'm on Mac version of Site Designer v4.0 latest build. All has been working well. All of a sudden I get the error in the attached file. It refers to a picture in the Resources. I deleted it and got an error with another picture, etc. Has anyone had this problem?

I'm stuck now. Everything looks ok and shows correctly in Preview, but I can't export the file.

Try closing & restarting the project file (save first pf course or even save as a new file name

Done that. I checked the referenced file in the library. It does not exist. I appears that the system is looking for a file that does not exist. This just came out of the blue. My backup files are giving the same error. It has been working fine, and I was about to download a final new version of a website. Now I'm stuck. I've opened a support file. Maybe they can help. Thanks.

I have had that message before but can not remember how I fixed it
try exporting to a different location just desktop or create a new folder & export it there