a popup asks the user to delete 

invalid dictionary file references

and referres to them,  but the referral is totally missing -

how is the user to decide wheher or not to delete the dictionaries? 

totally  dysfunctional sourcetree warning  message , see screenshot 

 this alert comes up due to serious performance issues, caused by sourcetree,  but the user is still unable to delete the dictionaries, as he remains in the blind about WHICH files are concerned - that happens ofen, but should never  happen