O.K. in the meantime I got it managed to install jquery by adjusting the related package.json
Unfortunately MM still doesn’t show up a random picture as expected.
Has someone maybe got it working and can give me a hint?

@strawberry-3.141 thank’s for your fast replay strawberry. I tried this but also got an error.
npm WARN magic-mirror-module-random-photo@1.0.0 No repository field.
So I’m still stumped.

I’m very sorry that I want to use the MM as a Magic Picture Frame but that’s more interesting for me. Sorry to the innovator of this really enterprising project. My problem indeed is that the mentioned importent module MMM-RandomPhoto won’t run as expected.
When I use an explicit link to the Image includig the image name it works but not as expected with a randomly selected Image.
The reason may be that I couldn’t install ‘jquery’ with npm. The Error I suffer is:
npm WARN enoent ENOENT: no such file or directory, open ‘/home/pi/package.json’
npm WARN !invalid#1 No description
npm WARN !invalid#1 No repository field.
npm WARN !invalid#1 No README data
npm WARN !invalid#1 No license field.
Has someone got it running or also seen this problem? Why can’t I install jquery on the last Jessie light distribution? Any help will be appreciated.
Thank’s in advance… Jo