Many of the examples return an uncountably large number of error messages

[jellepoland]

They are all of the line:
** On entry to DLASWP parameter number 6 had an illegal value

[jellepoland]

The pulley.jl gives this additional error:

┌ Warning: Interrupted. Larger maxiters is needed. If you are using an integrator for non-stiff ODEs or an automatic switching algorithm (the default), you may want to consider using a method for stiff equations. See the solver pages for more details (e.g. https://docs.sciml.ai/DiffEqDocs/stable/solvers/ode_solve/#Stiff-Problems).
└ @ SciMLBase ~/.julia/packages/SciMLBase/dld4W/src/integrator_interface.jl:589
┌ Warning: Return code for solution: MaxIters
└ @ SymbolicAWEModels ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/src/symbolic_awe_model.jl:606
ERROR: LoadError: AssertionError: successful_retcode(s.integrator.sol)
Stacktrace:
  [1] next_step!(s::SymbolicAWEModel; set_values::Nothing, dt::Float64, vsm_interval::Int64)
    @ SymbolicAWEModels ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/src/symbolic_awe_model.jl:608
  [2] next_step!
    @ ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/src/symbolic_awe_model.jl:595 [inlined]
  [3] top-level scope
    @ ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/examples/pulley.jl:38
  [4] include(fname::String)
    @ Main ./sysimg.jl:38
  [5] top-level scope
    @ none:1
  [6] eval
    @ ./boot.jl:430 [inlined]
  [7] eval
    @ ./sysimg.jl:48 [inlined]
  [8] example_menu()
    @ Main ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/examples/menu.jl:24
  [9] top-level scope
    @ ~/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/examples/menu.jl:32
 [10] include(fname::String)
    @ Main ./sysimg.jl:38
 [11] top-level scope
    @ REPL[1]:1
in expression starting at /home/jellepoland/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/examples/pulley.jl:36
in expression starting at /home/jellepoland/ownCloud/phd/code/OpenSourceAWE/SymbolicAWEModels.jl/examples/menu.jl:32

julia> 

[1-Bart-1]

Have you tried restarting julia and removing data/model*.bin?
This seems to be related to python: ContinuumIO/anaconda-issues#804
And we only use python for plotting. Did you have Plots and ControlPlots loaded at the same time maybe?

I am trying to run the examples now, to see if I get the same error.

[1-Bart-1]

I am getting the same error... After copying the Manifest-v1.11.toml.default to Manifest-v1.11.toml and running again, the issue was resolved. This error:
** On entry to DLASWP parameter number 6 had an illegal value
is an error in one of the dependencies.

Probably one of these dependencies:

(SymbolicAWEModels) pkg> up
    Updating registry at `~/.julia/registries/General.toml`
    Updating `~/Code/SymbolicAWEModels.jl/Project.toml`
  [7ed4a6bd] ↑ LinearSolve v3.24.0 ⇒ v3.25.0
  [2913bbd2] ↑ StatsBase v0.34.5 ⇒ v0.34.6
    Updating `~/Code/SymbolicAWEModels.jl/Manifest-v1.11.toml`
  [7ed4a6bd] ↑ LinearSolve v3.24.0 ⇒ v3.25.0
  [e409e4f3] ↑ PoissonRandom v0.4.5 ⇒ v0.4.6
  [2913bbd2] ↑ StatsBase v0.34.5 ⇒ v0.34.6

And most probably LinearSolve.
So I added this line to compat in Project.toml:
LinearSolve = "<3.25.0"

About the pulley issue, I will look into it later today.

[1-Bart-1]

examples/pulley.jl works fine for me. Is this on the latest version of the main branch?

[1-Bart-1]

Closing this issue as the LinearSolve version constraint fixed the error messages, and the pulley example works on the latest release.