Hey guys,
I’m completely new to JabRef and this forum so please be kind if I did something wrong. 
I created a custom entry type “online” due to there is no default entry type for online sources (or am I wrong?). Every time I try to fill in the fields (citation key, title, author, date (optional), url, urldate) I get the following error message:
Can you please help me with this?
Hi,
if you change your library mode to biblatex you have an entry type online.
Thank you for your answer. I changed the library mode to biblatex but unfortunately the error still occurs when I’m selecting the “{} BibTeX Source” after filling in the “online” fields.
So the problem is still unsolved.
Which jabref version are you using? 5.2? If not then update it
Yes I’m using version 5.2. …
Can you please post the details of the exception?
Just paste them here. That will help narrowing down the error
So I don’t know why but it seems like it’s working now. I will comment on this post again, if the error occurs again.
Thank you for your help!
