Problem with using MCTS and BASICPOMCP

[zizi...@gmail.com]

Hello,
I wanted to use POMCP for solving huge games, so I downloaded BasicPOMCP and other modules which are required to run it. But sadly when I was downloading dependencies, the dependency MCTS did not install correctly. No folder for MCTS was created in  ..\.juliapro\JuliaPro_v1.2.0-1\registries\JuliaPOMDP\M\ and i got this error (with stacktrace) after trying Pkg.add("MCTS") (I have used include("MCTS\\src\\MCTS.jl") which worked just fine):

ERROR: The following package names could not be resolved:

 * MCTS (not found in project, manifest or registry)

Please specify by known `name=uuid`.

Stacktrace:

 [1] pkgerror(::String) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Types.jl:121

 [2] #ensure_resolved#72(::Bool, ::typeof(Pkg.Types.ensure_resolved), ::Pkg.Types.EnvCache, ::Array{Pkg.Types.PackageSpec,1}) at C:\Users\julia\AppData\Local\Juli-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Types.jl:1011

 [3] #ensure_resolved at .\none:0 [inlined]

 [4] #add_or_develop#17(::Symbol, ::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(Pkg.API.add_or_develop), ::Pkg.Types.Cotext, ::Array{Pkg.Types.PackageSpec,1}) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:54

 [5] #add_or_develop at .\none:0 [inlined]

 [6] #add_or_develop#16 at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:36 [inlined]

 [7] #add_or_develop at .\none:0 [inlined]

 [8] #add_or_develop#13 at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:34 [inlined]

 [9] #add_or_develop at .\none:0 [inlined]

 [10] #add_or_develop#12(::Base.Iterators.Pairs{Symbol,Symbol,Tuple{Symbol},NamedTuple{(:mode,),Tuple{Symbol}}}, ::typeof(Pkg.API.add_or_develop), ::String) at C:Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:33

 [11] add(::String) at .\none:0

 [12] top-level scope at none:0

After that I thought that POMDP.add_registry() might help, so i ran this command and tried again  Pkg,add("MCTS"), but got following error.

ERROR: Error when installing package MCTS:

HTTP.ExceptionRequest.StatusError(404, HTTP.Messages.Response:

"""

HTTP/1.1 404 Not Found

Server: openresty/1.15.8.1

Date: Tue, 26 Nov 2019 08:36:57 GMT

Content-Type: text/html

Content-Length: 159

Connection: keep-alive

""")

Stacktrace:

 [1] #request#1 at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\HTTP\src\ExceptionRequest.jl:22 [inlined]

 [2] (::getfield(HTTP, Symbol("#kw##request")))(::NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}, ::typeof(HTTP.request),

::Type{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}, ::HTTP.URIs.URI, ::HTTP.Messages.Request, ::Nothing) at .\none:0

 [3] (::getfield(Base, Symbol("###50#51#53")){ExponentialBackOff,getfield(HTTP.RetryRequest, Symbol("##2#3")){Bool,HTTP.Messages.Request},typeof(HTTP.request)})(::Base.Iterators.Pairs{Symbol,getfield(CredentialsHandler, Symbol("##1#3")){String},Tuple{Symbol},NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}}, ::getfield(Base, Symbol("##50#52")){getfield(Base, Symbol("###50#51#53")){ExponentialBackOff,getfield(HTTP.RetryRequest, Symbol("##2#3")){Bool,HTTP.Messages.Request},typeof(HTTP.request)}}, ::Type, ::Vararg{Any,N} where N) at .\error.jl:249

 [4] (::getfield(HTTP, Symbol("#kw##request")))(::NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}, ::typeof(HTTP.request),

::Type{HTTP.RetryRequest.RetryLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}, ::HTTP.URIs.URI, ::HTTP.Messages.Request, ::Nothing) at .\none:0

 [5] #request#1(::VersionNumber, ::String, ::Nothing, ::Function, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(HTTP.request), ::Type{HTTP.MessageRequest.MessageLayer{HTTP.RetryRequest.RetryLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::Nothing) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\HTTP\src\MessageRequest.jl:47

 [6] (::getfield(HTTP, Symbol("#kw##request")))(::NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}, ::typeof(HTTP.request),

::Type{HTTP.MessageRequest.MessageLayer{HTTP.RetryRequest.RetryLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::Nothing) at .\none:0

 [7] #request#1(::Int64, ::Bool, ::Base.Iterators.Pairs{Symbol,getfield(CredentialsHandler, Symbol("##1#3")){String},Tuple{Symbol},NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}}, ::typeof(HTTP.request), ::Type{HTTP.RedirectRequest.RedirectLayer{HTTP.MessageRequest.MessageLayer{HTTP.RetryRequest.RetryLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::Nothing) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\HTTP\src\RedirectRequest.jl:24

 [8] (::getfield(HTTP, Symbol("#kw##request")))(::NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}, ::typeof(HTTP.request),

::Type{HTTP.RedirectRequest.RedirectLayer{HTTP.MessageRequest.MessageLayer{HTTP.RetryRequest.RetryLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::Nothing) at .\none:0

 [9] #request#5(::Base.Iterators.Pairs{Symbol,getfield(CredentialsHandler, Symbol("##1#3")){String},Tuple{Symbol},NamedTuple{(:iofunction,),Tuple{getfield(CredentialsHandler, Symbol("##1#3")){String}}}}, ::typeof(HTTP.request), ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::Nothing) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\HTTP\src\HTTP.jl:300

 [10] download(::String, ::String) at .\none:0

 [11] (::getfield(BinaryProvider.JuliaTeam, Symbol("##1#2")){getfield(BinaryProvider, Symbol("##51#76")){getfield(BinaryProvider, Symbol("##46#71")){Cmd,String}}})(::String, ::String) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\BinaryProvider\src\JuliaTeam.jl:18

 [12] #download#97(::Bool, ::typeof(BinaryProvider.download), ::String, ::String) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\BinaryProvider\src\PlatformEngines.jl:494

 [13] download at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\BinaryProvider\src\PlatformEngines.jl:493 [inlined]

 [14] install_archive(::Array{String,1}, ::Base.SHA1, ::Base.UUID, ::String) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Operations.jl:517

 [15] macro expansion at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Operations.jl:659 [inlined]

 [16] (::getfield(Pkg.Operations, Symbol("##26#29")){Symbol,Pkg.Types.Context,Dict{Base.UUID,Base.SHA1},Dict{Base.UUID,Array{String,1}},Channel{Any},Channel{Any}})() at .\task.jl:268

Stacktrace:

 [1] pkgerror(::String, ::Vararg{String,N} where N) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Types.jl:121

 [2] #apply_versions#23(::Symbol, ::typeof(Pkg.Operations.apply_versions), ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Dict{Base.UUID,Base.SHA1}, ::Dict{Base.UUID,Array{String,1}}) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Operations.jl:677

 [3] #apply_versions#22 at .\none:0 [inlined]

 [4] #apply_versions at .\none:0 [inlined]

 [5] #add_or_develop#63(::Array{Base.UUID,1}, ::Symbol, ::typeof(Pkg.Operations.add_or_develop), ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\Operations.jl:1236

 [6] #add_or_develop at .\none:0 [inlined]

 [7] #add_or_develop#17(::Symbol, ::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(Pkg.API.add_or_develop), ::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:59

 [8] #add_or_develop at .\none:0 [inlined]

 [9] #add_or_develop#16 at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:36 [inlined]

 [10] #add_or_develop at .\none:0 [inlined]

 [11] #add_or_develop#13 at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:34 [inlined]

 [12] #add_or_develop at .\none:0 [inlined]

 [13] #add_or_develop#12(::Base.Iterators.Pairs{Symbol,Symbol,Tuple{Symbol},NamedTuple{(:mode,),Tuple{Symbol}}}, ::typeof(Pkg.API.add_or_develop), ::String) at C:\Users\julia\AppData\Local\Julia-1.2.0\share\julia\stdlib\v1.2\Pkg\src\API.jl:33

 [14] add(::String) at .\none:0

 [15] top-level scope at none:0

I am Julia beginner so I don't really know what is going on, and how to fix it :(, do you have any suggestions??

[Zachary Sunberg]

Hi, thanks for posting your problem. I suspect it has something to do with JuliaPro. This issue may be relevant: https://github.com/JuliaPOMDP/POMDPs.jl/issues/249#issuecomment-510741523

I am investigating further now.

[Zachary Sunberg]

After looking into it, yes, I think you have to take the step of commenting out the ENV["DISABLE_FALLBACK"] line as mentioned in the issue. Will add a note to the installation instructions in the README