Hi! First of all thank you for providing the package, hope to see it grow and improve

Cannot read `TTree` from file about unroot.jl HOT 3 CLOSED

juliahep commented on May 22, 2024

Cannot read `TTree` from file

from unroot.jl.

Comments (3)

aminnj commented on May 22, 2024 3

Solved in master/v0.6.3!

from unroot.jl.

gipert commented on May 22, 2024 2

Super fast! Thanks a lot.

from unroot.jl.

aminnj commented on May 22, 2024

Thanks for the file! Indeed there's something funny going on. For now, you can "solve" it with a bandaid:

diff --git a/src/streamers.jl b/src/streamers.jl
index 4b14ffb..6ab8144 100644
--- a/src/streamers.jl
+++ b/src/streamers.jl
@@ -589,6 +589,9 @@ function unpack(io, tkey::TKey, refs::Dict{Int32, Any}, ::Type{T}) where {T<:ROO
     mod, typename = split(String(streamer_name), ".")
     streamer = getfield(@__MODULE__, Symbol(typename))
     readfields!(cursor, fields, streamer)
+    if streamer === TBranchElement_10
+        fields[:fIOFeatures] = 0x00
+    end
     streamer(;cursor=cursor, fields...)
 end

since the stacktrace (after removing some try-catch which hides it from the user) is

julia> f["fTree"]
fields[:fIOFeatures] = missing
ERROR: Field 'fIOFeatures' has no default, supply it with keyword.
Stacktrace:
 [1] error(s::String)
   @ Base ./error.jl:33
 [2] unpack(io::IOBuffer, tkey::UnROOT.TKey32, refs::Dict{Int32, Any}, #unused#::Type{UnROOT.TBranchElement})
   @ UnROOT ~/.julia/dev/UnROOT/src/streamers.jl:592
 [3] readobjany!(io::IOBuffer, tkey::UnROOT.TKey32, refs::Dict{Int32, Any})
   @ UnROOT ~/.julia/dev/UnROOT/src/streamers.jl:239
 [4] unpack(io::IOBuffer, tkey::UnROOT.TKey32, refs::Dict{Int32, Any}, T::Type{UnROOT.TObjArray})
   @ UnROOT ~/.julia/dev/UnROOT/src/streamers.jl:316
 [5] UnROOT.TTree(io::IOStream, tkey::UnROOT.TKey32, refs::Dict{Int32, Any}; top::Bool)
   @ UnROOT ~/.julia/dev/UnROOT/src/bootstrap.jl:915
 [6] UnROOT.TTree(io::IOStream, tkey::UnROOT.TKey32, refs::Dict{Int32, Any})
   @ UnROOT ~/.julia/dev/UnROOT/src/bootstrap.jl:857
 [7] _getindex(f::ROOTFile, s::String)
   @ UnROOT ~/.julia/dev/UnROOT/src/root.jl:151
 [8] getindex(f::ROOTFile, s::String)
   @ UnROOT ~/.julia/dev/UnROOT/src/root.jl:128
 [9] top-level scope
   @ REPL[7]:1