Qupath and imageJ

I can run qupath and ImageJ independently, but sent region to ImageJ from qupath has the problem shown in the figure, what is the reason?

It would help if you include the text of the log file, since a picture of it is not complete, along with both your Workflow/a script and the Image tab (with the image name potentially scrambled if it is sensitive information). Also the version of QuPath would be useful, though maybe Pete can identify that somehow from the little bit of text that is shown. I can’t though.

From the information provided I can’t tell what the problem is, but it looks from the error to be QuPath v0.1.2. Since there have been many relevant changes since then, any issue may already be fixed in the recent milestone versions.