# How to Solve this error message on Abaqus 'time increment required is less than specified' and 'too many attempts made for this increment'?

I am currently working on my dissertation project using abaqus, my model is an arch bridge consisting of a shell and solid elements, there are concrete and steel materials also, I have checked all of the constraints, and I found that there are some constraints giving the error messages 'time increment required is less than specified' and 'too many attempts made for this increment', specifically, those constraints happened in shell-solid tie constraints. the other constraints between solid to solid were fine.

Can anybody help me resolve these problems?

Looking at the .msg file is usually enlightening.