I purchased a license for TaskPaper in 2012, and happily I used the product off and on through the years. I was recently assigned a new replacement Mac by my employer, installed TaskPaper, and attempted to activate the key. I received the following error message, “Unable to find the requested license”.
I’m not sure, but I think maybe you are trying to enter your older license into TaskPaper 3? TaskPaper 3 requires an upgraded license. You can download TaskPaper 2 here:
Also if you want to upgrade your license to TaskPaper 3 you here are instructions: