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I am trying to add Algames pkg to Julia and there is precompilation error. I have observed that when I run "add Algames", the existing Altro pkg is changing from v0.4.0 to v0.3.0, RobotZoo is changing from v0.2.3 to v0.1.3, and TrajectoryOptimization is changing from v0.5.0 to 0.4.2. And then Altro, TrajOptPlots and Algames are failing to precompile. The error flag is as follows:

ERROR: The following 2 direct dependencies failed to precompile:

Algames [4a64a370-b39e-4988-9b44-fc3fb6d78c25]

Failed to precompile Algames [4a64a370-b39e-4988-9b44-fc3fb6d78c25] to /home/iconlab/.julia/compiled/v1.6/Algames/jl_CSXCSO.
ERROR: LoadError: UndefVarError: QuadraticObjective not defined
Stacktrace:
[1] include
@ ./Base.jl:386 [inlined]
[2] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::String)
@ Base ./loading.jl:1235
[3] top-level scope
@ none:1
[4] eval
@ ./boot.jl:360 [inlined]
[5] eval(x::Expr)
@ Base.MainInclude ./client.jl:446
[6] top-level scope
@ none:1
in expression starting at /home/iconlab/.julia/packages/Altro/ZbP1c/src/Altro.jl:1
ERROR: LoadError: Failed to precompile Altro [5dcf52e5-e2fb-48e0-b826-96f46d2e3e73] to /home/iconlab/.julia/compiled/v1.6/Altro/jl_S5kxQ0.
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:33
[2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IOContext{Base.PipeEndpoint}, internal_stdout::IOContext{IOStream}, ignore_loaded_modules::Bool)
@ Base ./loading.jl:1385
[3] compilecache(pkg::Base.PkgId, path::String)
@ Base ./loading.jl:1329
[4] _require(pkg::Base.PkgId)
@ Base ./loading.jl:1043
[5] require(uuidkey::Base.PkgId)
@ Base ./loading.jl:936
[6] require(into::Module, mod::Symbol)
@ Base ./loading.jl:923
[7] include
@ ./Base.jl:386 [inlined]
[8] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing)
@ Base ./loading.jl:1235
[9] top-level scope
@ none:1
[10] eval
@ ./boot.jl:360 [inlined]
[11] eval(x::Expr)
@ Base.MainInclude ./client.jl:446
[12] top-level scope
@ none:1
in expression starting at /home/iconlab/.julia/packages/Algames/HKoX6/src/Algames.jl:1

Altro [5dcf52e5-e2fb-48e0-b826-96f46d2e3e73]

Failed to precompile Altro [5dcf52e5-e2fb-48e0-b826-96f46d2e3e73] to /home/iconlab/.julia/compiled/v1.6/Altro/jl_jE0Flc.
ERROR: LoadError: UndefVarError: QuadraticObjective not defined
Stacktrace:
[1] include
@ ./Base.jl:386 [inlined]
[2] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing)
@ Base ./loading.jl:1235
[3] top-level scope
@ none:1
[4] eval
@ ./boot.jl:360 [inlined]
[5] eval(x::Expr)
@ Base.MainInclude ./client.jl:446
[6] top-level scope
@ none:1
in expression starting at /home/iconlab/.julia/packages/Altro/ZbP1c/src/Altro.jl:1

Stacktrace:
[1] pkgerror(msg::String)
@ Pkg.Types /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Pkg/src/Types.jl:55
[2] precompile(ctx::Pkg.Types.Context; internal_call::Bool, strict::Bool, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Pkg.API /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Pkg/src/API.jl:1265
[3] precompile
@ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Pkg/src/API.jl:921 [inlined]
[4] #precompile#196
@ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Pkg/src/API.jl:919 [inlined]
[5] precompile()
@ Pkg.API /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Pkg/src/API.jl:919
[6] top-level scope
@ REPL[3]:1

Hi Simon, Hi Algames Developers,

many thanks for writing the nice paper and making the code publicly available. I am a beginner with Julia and tried to run the intro_example.jl using vscode (with Julia extension). I can run the code successfully, however, the code is not determined even after half an hour. Here are the outputs:

out in α Δ res reg
1 1 1 6e-01 2e-01 1e-03
1 2 1 3e-01 2e-01 2e-02
1 3 2 9e-02 1e-01 8e-02
1 4 2 5e-02 6e-02 3e-01
1 5 1 4e-02 4e-02 6e-01
1 6 1 2e-02 3e-02 1e+00
1 7 1 8e-03 2e-02 2e+00
1 8 1 2e-03 2e-02 4e+00
1 9 1 1e-03 6e-03 7e+00
1 10 1 8e-04 5e-03 1e+01
1 11 1 5e-04 5e-03 1e+01
1 12 1 4e-04 4e-03 2e+01
1 13 1 3e-04 4e-03 3e+01
1 14 1 2e-04 4e-03 4e+01
1 15 1 1e-04 4e-03 5e+01
1 16 1 1e-04 4e-03 7e+01
1 17 1 8e-05 4e-03 8e+01
1 18 1 7e-05 4e-03 1e+02
1 19 1 5e-05 4e-03 1e+02
1 20 1 4e-05 4e-03 2e+02
out in α Δ res reg
2 1 1 7e-02 3e-02 1e-03
2 2 4 2e-02 2e-02 2e-02
2 3 1 2e-02 2e-02 8e-02
2 4 2 8e-03 1e-02 3e-01
2 5 1 2e-03 4e-03 6e-01
2 6 1 9e-04 2e-03 1e+00
2 7 1 3e-04 1e-03 2e+00
2 8 1 1e-04 5e-04 4e+00
2 9 1 6e-05 2e-04 7e+00
2 10 1 4e-05 2e-04 1e+01
2 11 1 3e-05 2e-04 1e+01
2 12 1 2e-05 2e-04 2e+01
2 13 1 1e-05 2e-04 3e+01
2 14 1 1e-05 2e-04 4e+01
2 15 1 7e-06 2e-04 5e+01
2 16 1 6e-06 2e-04 7e+01
2 17 1 4e-06 2e-04 8e+01
2 18 1 3e-06 2e-04 1e+02
2 19 1 3e-06 2e-04 1e+02
2 20 1 2e-06 2e-04 2e+02
out in α Δ res reg
3 1 25 5e-09 7e-03 1e-03
out in α Δ res reg
4 1 11 2e-04 7e-03 1e-03
4 2 11 1e-04 7e-03 2e-02
4 3 10 7e-05 7e-03 8e-02
4 4 11 1e-05 7e-03 3e-01
4 5 6 2e-04 7e-03 6e-01
4 6 8 3e-05 7e-03 1e+00
4 7 8 2e-05 7e-03 2e+00
4 8 4 8e-05 7e-03 4e+00
4 9 5 3e-05 6e-03 7e+00
4 10 1 2e-04 6e-03 1e+01
4 11 1 6e-05 4e-03 1e+01
4 12 1 2e-05 6e-04 2e+01
4 13 1 1e-05 3e-04 3e+01
4 14 1 1e-05 3e-04 4e+01
4 15 1 8e-06 3e-04 5e+01
4 16 1 6e-06 3e-04 7e+01
4 17 1 5e-06 3e-04 8e+01
4 18 1 4e-06 3e-04 1e+02
4 19 1 3e-06 3e-04 1e+02
4 20 1 2e-06 3e-04 2e+02
out in α Δ res reg
5 1 12 5e-05 2e-02 1e-03
5 2 2 1e-02 2e-02 2e-02
5 3 2 1e-02 2e-02 8e-02
5 4 1 8e-03 1e-02 3e-01
5 5 1 6e-03 6e-03 6e-01
5 6 1 2e-03 6e-03 1e+00
5 7 1 3e-04 3e-03 2e+00

Really hope you can give me some hints of what went wrong. Many thanks for your help in advance!
Best regards,
Yuanfei

I think you should not be changing the global random seed as a library (causes issues in user code). Should use your own rng with MersenneTwister.

Hi, l am new guy of julia. When i copy the Installation guide into the julia REPL, the first one work well. The second one (ALGAMES.jl) says "ERROR: GitError(Code:ERROR, Class:Submodule, cannot get submodules without a working tree) ". Is there a problem with my operation or is there a dependency but not installed?