Error Installing JCB in J!5
I don't like to argue, but I am going to argue the "accusation" that the error is because it a Windows environment. That almost always seems to be the immediate response when there is an issue…
Error Installing JCB in J!5
Update, it looks as though JCB 5.0.0-alpha1 may have installed, even with the error.
Error Installing JCB in J!5
Error installing JCB 3.2.0-beta1
Error installing JCB 3.2.0-beta1