56 lines
2.2 KiB
Markdown
56 lines
2.2 KiB
Markdown
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@def hascode = true
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# FAQ - Troubleshooting
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This page is about some of the known errors you may encounter when using Franklin and how to deal with them.
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If you encounter an error that is not mentioned here, then it's probably a bug and it would be great if you could open an issue!
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\toc
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## Error on interruption
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You may (rarely) get an an error thrown at you when interrupting the server with `<CTRL>+C`, particularly when using Juno.
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There are a couple of reasons this may happen, both unrelated to Franklin.
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### Juno
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Juno (very rarely) crashes if you coincidentally press `<CTRL>+C` while Juno is doing something in the background (Juno issue [#309](https://github.com/JunoLab/Juno.jl/issues/309)).
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The stacktrace you will see will seem particularly obscure, for instance:
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```
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InterruptException:
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_string_n at string.jl:60 [inlined]
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StringVector at iobuffer.jl:31 [inlined]
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#IOBuffer#320(::Bool, ::Bool, ::Nothing, ::Bool, ::Int64, ::Int64, ::Type{Base.GenericIOBuffer{Array{UInt8,1}}}) at iobuffer.jl:114
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(...)
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```
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or
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```
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julia> "miniERROR: InterruptException:
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Stacktrace:
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[1] poptaskref(::Base.InvasiveLinkedListSynchronized{Task}) at ./task.jl:564
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[2] wait() at ./task.jl:591
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(...)
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```
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**Solution**: ignore the error, kill then restart the server or, failing that, kill and restart Julia.
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### Not-Juno
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The [`LiveServer.jl`](https://github.com/asprionj/LiveServer.jl) package, which handles the live-serving of the files, is based upon [`HTTP.jl`](https://github.com/asprionj/LiveServer.jl).
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The latter has a fairly complex codebase with a number of asynchronous tasks and is known to sometimes crash in (somewhat) mysterious ways.
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If the stacktrace mentions `uv_write`, `uv_write_async`, `libuv` or something of the sorts, then this is an example of _known but mysterious way_.
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Like the "Juno" case, these errors are caused when you happen to press interrupt just as the package was doing something important in the background.
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This is very rare but can happen and you can safely ignore it.
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**Solution**: ignore the error, kill then restart the server or, failing that, kill and restart Julia.
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## IOStream error
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See the comment about HTTP.jl in the [subsection above](#Not-Juno-1).
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