addprocs() ERROR: KeyError: key "stdout" not found

[4lrdyD]

I tried to add work processes in Julia0.5, but I get an error as follows:

julia> addprocs()
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
From worker 7: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 7: [0] NVIDIA : GeForce GT 630M, 2048 MB
From worker 7: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
From worker 7: -2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
Worker 7 terminated.
From worker 4: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 4: [0] NVIDIA : GeForce GT 630M, 2048 MB
Worker 4 terminated.ERROR (unhandled task failure): Version read failed. Connection closed by peer.
From worker 4: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB

    From worker 4:  -2- INTEL   : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB

ERROR (unhandled task failure): readcb: connection reset by peer (ECONNRESET)
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
From worker 2: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
Worker 2 terminated. From worker 2: [0] NVIDIA : GeForce GT 630M, 2048 MB

    From worker 2:  -1- INTEL   : Intel(R) HD Graphics 4000, 1400 MB
    From worker 2:  -2- INTEL   : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB

ERROR (unhandled task failure): readcb: connection reset by peer (ECONNRESET)
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
From worker 5: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 5: [0] NVIDIA : GeForce GT 630M, 2048 MB
From worker 5: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
From worker 5: -2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB
Worker 5 terminated.
ERROR (unhandled task failure): readcb: connection reset by peer (ECONNRESET)
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
Worker 8 terminated.
ERROR (unhandled task failure): Version read failed. Connection closed by peer.
in process_hdr(::TCPSocket, ::Bool) at .\multi.jl:1410
in message_handler_loop(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1299
in process_tcp_streams(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1276
in (::Base.##620#621{TCPSocket,TCPSocket,Bool})() at .\event.jl:68
From worker 8: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 8: [0] NVIDIA : GeForce GT 630M, 2048 MB
From worker 8: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
From worker 8: -2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
Worker 9 terminated.
ERROR (unhandled task failure): Version read failed. Connection closed by peer.
in process_hdr(::TCPSocket, ::Bool) at .\multi.jl:1410
in message_handler_loop(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1299
in process_tcp_streams(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1276
in (::Base.##620#621{TCPSocket,TCPSocket,Bool})() at .\event.jl:68
From worker 9: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 9: [0] NVIDIA : GeForce GT 630M, 2048 MB
From worker 9: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
From worker 9: -2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB
ERROR: KeyError: key "stdout" not found
in getindex at .\dict.jl:688 [inlined]
in send_stream(::String) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:109
in flush(::Base.PipeEndpoint) at C:\Users\user.julia\v0.5\IJulia\src\stdio.jl:231
in start_worker(::Base.PipeEndpoint, ::String) at .\multi.jl:1543
in process_options(::Base.JLOptions) at .\client.jl:220
in _start() at .\client.jl:318
Worker 3 terminated.
ERROR (unhandled task failure): Version read failed. Connection closed by peer.
in process_hdr(::TCPSocket, ::Bool) at .\multi.jl:1410
in message_handler_loop(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1299
in process_tcp_streams(::TCPSocket, ::TCPSocket, ::Bool) at .\multi.jl:1276
in (::Base.##620#621{TCPSocket,TCPSocket,Bool})() at .\event.jl:68
From worker 3: ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
From worker 3: [0] NVIDIA : GeForce GT 630M, 2048 MB
From worker 3: -1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
From worker 3: -2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB

then I have to restart Julia, since it no longer works

julia> afinfo()
ArrayFire v3.4.2 (OpenCL, 64-bit Windows, build 2da9967)
[0] NVIDIA : GeForce GT 630M, 2048 MB
-1- INTEL : Intel(R) HD Graphics 4000, 1400 MB
-2- INTEL : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz, 6037 MB

julia> versioninfo()
Julia Version 0.5.0
Commit 3c9d753 (2016-09-19 18:14 UTC)
Platform Info:
System: NT (x86_64-w64-mingw32)
CPU: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
WORD_SIZE: 64
BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge)
LAPACK: libopenblas64_
LIBM: libopenlibm
LLVM: libLLVM-3.7.1 (ORCJIT, ivybridge)

julia> Sys.CPU_CORES
8

[andreasnoack]

I don't see this issue on 0.6 or 0.5.1 so could you try to update your Julia to either 0.5.1 or 0.6 to see if the problem remains?

[4lrdyD]

yes I have Julia0.6 and this does not happen, but the problem is that in version 0.6 I can not work with some packages, this is going to be problematic for me

[andreasnoack]

What about 0.5.2?

[4lrdyD]

i don't use that versión, but i guess that i must attempt, thanks a lot.

[felixcremer]

This issue can be closed. The problem has been fixed in 0.6.