Error in readme example

[1-Bart-1]

julia> init!(sam)
[ Info: Initializing pendulum model...
ERROR: Unavailable solver for SymbolicAWEModel: DFBDF.
Stacktrace:
 [1] error(s::String)
   @ Base ./error.jl:44
 [2] macro expansion
   @ ~/.julia/packages/SymbolicAWEModels/fEBKL/src/model_management.jl:393 [inlined]
 [3] macro expansion
   @ ./timing.jl:461 [inlined]
 [4] 
   @ SymbolicAWEModels ~/.julia/packages/SymbolicAWEModels/fEBKL/src/model_management.jl:385
 [5] init!(sam::SymbolicAWEModel)
   @ SymbolicAWEModels ~/.julia/packages/SymbolicAWEModels/fEBKL/src/model_management.jl:368
 [6] top-level scope
   @ REPL[10]:1
Some type information was truncated. Use `show(err)` to see complete types.

[1-Bart-1]

@claude look into this, the problem is that when using the default KiteUtils settings, the solver is DFBDF. Unknown solver should just show warning and use the default FBDF instead.

[1-Bart-1]

@claude

[claude]

Claude finished @1-Bart-1's task in 41s —— View job • claude/issue-156-20260321-1433 • Create PR ➔

---

Fix: Warn on unknown solver and fall back to FBDF

• Read CLAUDE.md for repo-specific guidelines
• Locate and read model_management.jl (line ~385-393)
• Understand the solver selection logic
• Implement fix: warn on unknown solver, fall back to FBDF
• Commit and push changes

Change made in src/model_management.jl at line 393:

Before:

else
    error("Unavailable solver for SymbolicAWEModel: $(sam.set.solver).")
end

After:

else
    @warn "Unavailable solver for SymbolicAWEModel: $(sam.set.solver). Falling back to FBDF."
    sam.set.quasi_static ? FBDF(nlsolve=OrdinaryDiffEqNonlinearSolve.NLNewton(relax=sam.set.relaxation)) : FBDF()
end

When sam.set.solver is set to an unknown value like DFBDF (e.g. from default KiteUtils settings), instead of crashing with an error, it now emits a @warn and falls back to FBDF (respecting the quasi_static setting).