I can't find the reason of this Warning: Selected joint type will result in conflict

[ahmed.hall253]

I'm making a design for a trash sorting machine, but I can't get the joints of the arm that push the trash to sort them right. I'm constantly getting that warning: Selected joint type will result in conflict.
This is a link for the arm assembled alone for anyone to troubleshoot.
https://a360.co/3FvyaqB
if anyone knows how to solve this please help 

[dsouzasujay · Accepted solution]

Hi @ahmed.hall253 

You have to redefine below joint, You have placed at an angle inclined.