`jsliteral not defined` error

Hi, i recently updated my project packages and after that I have been experiencing the below mentioned error upon running the web app. May I ask, what could be causing this issue ?

Error:

Error: UndefVarError: jsliteral not defined
│ Stacktrace:
│   [1] getproperty
│     @ .\Base.jl:26 [inlined]
│   [2] deps(channel::String; core_theme::Bool)
│     @ Stipple ~\.julia\packages\Stipple\Ab4El\src\Stipple.jl:1123
│   [3] layout(output::Vector{AbstractString}; partial::Bool, title::String, class::String, style::String, head_content::String, channel::String, core_theme::Bool)
│     @ Stipple.Layout ~\.julia\packages\Stipple\Ab4El\src\Layout.jl:47
│   [4] page(elemid::String, args::Vector{Genie.Renderer.Html.ParsedHTMLString}; partial::Bool, title::String, class::String, style::String, channel::String, head_content::String, prepend::String, append::Vector{Any}, core_theme::Bool, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
│     @ Stipple.Layout ~\.julia\packages\Stipple\Ab4El\src\Layout.jl:88
│   [5] #page#3
│     @ ~\.julia\packages\Stipple\Ab4El\src\Layout.jl:98 [inlined]
│   [6] ui(model::APP)
│     @ Main.App ~\src\Webapp.jl:129
│   [7] |>
│     @ .\operators.jl:858 [inlined]
│   [8] (::Main.App.var"#14#15")()
│     @ Main.App ~\src\Webapp.jl:166
│   [9] match_routes(req::HTTP.Messages.Request, res::HTTP.Messages.Response, params::Genie.Router.Params{Any})
│     @ Genie.Router ~\.julia\packages\Genie\psIXJ\src\Router.jl:470
│  [10] route_request(req::HTTP.Messages.Request, res::HTTP.Messages.Response)
│     @ Genie.Router ~\.julia\packages\Genie\psIXJ\src\Router.jl:149
│  [11] handle_request(req::HTTP.Messages.Request, res::HTTP.Messages.Response)
│     @ Genie.AppServer ~\.julia\packages\Genie\psIXJ\src\AppServer.jl:235
│  [12] #24
│     @ C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\macros.jl:127 [inlined]
│  [13] run_work_thunk(thunk::Genie.AppServer.var"#24#25"{HTTP.Messages.Request, HTTP.Messages.Response}, print_error::Bool)
│     @ Distributed C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\process_messages.jl:63
│  [14] remotecall_fetch(::Function, ::Distributed.LocalProcess; kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
│     @ Distributed C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\remotecall.jl:379
│  [15] remotecall_fetch(::Function, ::Distributed.LocalProcess)
│     @ Distributed C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\remotecall.jl:379
│  [16] remotecall_fetch(::Function, ::Int64; kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
│     @ Distributed C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\remotecall.jl:421
│  [17] remotecall_fetch(::Function, ::Int64)
│     @ Distributed C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Distributed\src\remotecall.jl:421
│  [18] setup_http_listener(req::HTTP.Messages.Request, res::HTTP.Messages.Response)
│     @ Genie.AppServer ~\.julia\packages\Genie\psIXJ\src\AppServer.jl:262
│  [19] setup_http_listener
│     @ ~\.julia\packages\Genie\psIXJ\src\AppServer.jl:261 [inlined]
│  [20] handle
│     @ ~\.julia\packages\HTTP\aTjcj\src\Handlers.jl:254 [inlined]
│  [21] handle(::HTTP.Handlers.RequestHandlerFunction{typeof(Genie.AppServer.setup_http_listener)}, ::HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}})
│     @ HTTP.Handlers ~\.julia\packages\HTTP\aTjcj\src\Handlers.jl:277
│  [22] setup_http_streamer(http::HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}})
│     @ Genie.AppServer ~\.julia\packages\Genie\psIXJ\src\AppServer.jl:251
│  [23] (::Genie.AppServer.var"#7#14"{Int64})(http::HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}})
│     @ Genie.AppServer ~\.julia\packages\Genie\psIXJ\src\AppServer.jl:117
│  [24] macro expansion
│     @ ~\.julia\packages\HTTP\aTjcj\src\Servers.jl:415 [inlined]
│  [25] (::HTTP.Servers.var"#13#14"{Genie.AppServer.var"#7#14"{Int64}, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}, HTTP.Servers.Server{Nothing, Sockets.TCPServer}, HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}}})()
│     @ HTTP.Servers .\task.jl:406

Thanks, would highly appreciate the advice and help !

[essenciary]

I think some of the packages have not been updated. Can you post the output of pkg> st

[AbhimanyuAryan]

Can you post your code? Or mwe