[ras_user]

This is the error message I receive when I trie to run an unsteady modelation of a 5 reach system with 2 junctions. It's a 3 reach streams with 2 tributaries. The principal stream is very complex with lots of hydraulic structures but before adding this two tributaries, which are not as complex as the first, the model runned very well. I keep getting this message after trying everything I imagined to remove the inestability so if someone can help me I will appreciate, any idea will be welcomed.

Thanks.

S. Symonds