Error The given key was not present in the dictionary


I start in use Fuse tool this week and try change the examples, one of this (Inbox examples), try to write other panel for write my code and I can’t make copy & paste becouse , say me this error

The given key was not present in the dictionary. - (0:0):E

(The same error that remove in the Active=“contents”) What other Active opticon I can write ?

If I find the soluction I write here

Thanks for read


Please post your code, so we can find the error.

At final delete and start again , I think that the problems is because , I can’t put 2 in the same panel Thanks Bjørn for try to find the error