iconv not installed properly (Windows 10) about stringencodings.jl HOT 3 CLOSED

ERROR: LoadError: iconv not installed properly, run Pkg.build("StringEncodings"), restart Julia and try again
Stacktrace:
 [1] error(::String) at .\error.jl:33
 [2] top-level scope at C:\Users\JohnDoe\.julia\packages\StringEncodings\B9gIH\src\StringEncodings.jl:10
 [3] include(::Function, ::Module, ::String) at .\Base.jl:380
 [4] include(::Module, ::String) at .\Base.jl:368
 [5] top-level scope at none:2
 [6] eval at .\boot.jl:331 [inlined]
 [7] eval(::Expr) at .\client.jl:467
 [8] top-level scope at .\none:3
in expression starting at C:\Users\JohnDoe\.julia\packages\StringEncodings\B9gIH\src\StringEncodings.jl:9
ERROR: LoadError: LoadError: UndefVarError: DateTime not defined
Stacktrace:
 [1] top-level scope at K:\Code\Julia\JohnDoe\plot_basic.jl:15
 [2] include(::String) at .\client.jl:457
 [3] top-level scope at C:\Users\JohnDoe\.julia\config\startup.jl:119
 [4] include(::Function, ::Module, ::String) at .\Base.jl:380
 [5] include at .\Base.jl:368 [inlined]
 [6] include_ifexists at .\client.jl:213 [inlined]
 [7] load_julia_startup() at .\client.jl:328
 [8] exec_options(::Base.JLOptions) at .\client.jl:267
 [9] _start() at .\client.jl:506
in expression starting at K:\Code\Julia\JohnDoe\plot_basic.jl:15
in expression starting at C:\Users\JohnDoe\.julia\config\startup.jl:119