Trying Plots the very first time in julia-1.0 on my Ubuntu machine and seeing the following error:
(v1.0) pkg> st
Status `~/.julia/environments/v1.0/Project.toml`
[c52e3926] Atom v0.7.8
[28b8d3ca] GR v0.34.1
[e5e0dc1b] Juno v0.5.3
[91a5bcdd] Plots v0.20.5
[d330b81b] PyPlot v2.6.3
[ee283ea6] Rebugger v0.1.4
[295af30f] Revise v0.7.12
julia> plot(1:3)
ERROR: error compiling _plot!: error compiling _display: could not load library "libGR.so"
libGR.so: cannot open shared object file: No such file or directory
Stacktrace:
[1] #plot#132(::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::UnitRange{Int64}) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/plot.jl:57
[2] plot(::UnitRange{Int64}) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/plot.jl:51
[3] top-level scope at none:0
Is this a bug? Or I’m supposed to do something else before I can call GR. Not seeing this kind of error on my Windows machine.
You need to import the Plots package using “import Plots” or “using Plots”
Of course, I have done this. The error was thrown after “using Plots”.
It looks like GR might not have build properly. Perhaps you can try to
pkg> build GR
Forgot to mention - this has been done too. It’s really unfathomable.
I suggest you open an issue at the GR repo, https://github.com/jheinen/GR.jl .
Edit: Or add a comment to https://github.com/jheinen/GR.jl/issues/158 since that seems to be the same issue.
Thanks. But I’m not 100% sure that this is an issue from GR. In fact, if I try to plot something right after I start julia-v1.0, here is what I see:
Julia has exited. Press Enter to start a new session.
Starting Julia...
_
_ _ _(_)_ | Documentation: https://docs.julialang.org
(_) | (_) (_) |
_ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 1.0.1 (2018-09-29)
_/ |\__'_|_|_|\__'_| | Official https://julialang.org/ release
|__/ |
julia> using Plots
julia> plot(1:3)
┌ Warning: You have set `PLOTS_DEFAULT_BACKEND=PyPlot` but `PyPlot` is not loaded.
â”” @ Plots ~/.julia/packages/Plots/7o1Vu/src/backends.jl:149
ERROR: error compiling _plot!: error compiling _display: could not load library "libGR.so"
libGR.so: cannot open shared object file: No such file or directory
Stacktrace:
[1] #plot#132(::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::UnitRange{Int64}) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/plot.jl:57
[2] plot(::UnitRange{Int64}) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/plot.jl:51
[3] top-level scope at none:0
As you can see, I set PyPlot as the default backend in startup.jl. Of course, I have PyPlot installed and built. Don’t see what `PyPlot` is not loaded means and why this is the case.
Try to locate libGR.so (using find). If it is not found, then it is definitely time to file an issue for GR.
Thanks! Find didn’t return anything close to libGR. So I have added a comment in ticket 158.
But still wonder the meaning of PyPlot not loaded:
┌ Warning: You have set `PLOTS_DEFAULT_BACKEND=PyPlot` but `PyPlot` is not loaded.
â”” @ Plots ~/.julia/packages/Plots/7o1Vu/src/backends.jl:149
Does
using Plots
plotly()
plot(rand(3))
work?
Most weirdly, these lines tried to open a new tab in my firefox brower and the address reads file:///tmp/juliaVrrjfI.html. What does this mean?
Oh, whoops, I meant
using Plots
pyplot()
plot(rand(3))
Opening a new tab in the browser is the right behaviour for the Plotly backend.
1 Like
Here is the output at the terminal:
julia> pyplot()
[ Info: Precompiling PyPlot [d330b81b-6aea-500a-939a-2ce795aea3ee]
[ Info: Installing matplotlib via the Conda matplotlib package...
[ Info: Running `conda install -y matplotlib` in root environment
Solving environment: done
## Package Plan ##
environment location: /home/chobbes/.julia/packages/Conda/hsaaN/deps/usr
added / updated specs:
- matplotlib
The following packages will be downloaded:
package | build
---------------------------|-----------------
icu-58.2 | h9c2bf20_1 22.5 MB
fontconfig-2.13.0 | h9420a91_0 291 KB
gstreamer-1.14.0 | hb453b48_1 3.8 MB
dbus-1.13.2 | h714fa37_1 554 KB
pytz-2018.5 | py37_0 231 KB
qt-5.9.6 | h8703b6f_2 87.1 MB
glib-2.56.2 | hd408876_0 5.0 MB
python-dateutil-2.7.3 | py37_0 260 KB
libuuid-1.0.3 | h1bed415_2 16 KB
jpeg-9b | h024ee3a_2 248 KB
gst-plugins-base-1.14.0 | hbbd80ab_1 6.3 MB
kiwisolver-1.0.1 | py37hf484d3e_0 83 KB
matplotlib-3.0.0 | py37h5429711_0 6.8 MB
expat-2.2.6 | he6710b0_0 187 KB
libxml2-2.9.8 | h26e45fe_1 2.0 MB
libxcb-1.13 | h1bed415_1 502 KB
tornado-5.1.1 | py37h7b6447c_0 662 KB
cycler-0.10.0 | py37_0 13 KB
pyqt-5.9.2 | py37h05f1152_2 5.6 MB
pyparsing-2.2.1 | py37_0 96 KB
sip-4.19.8 | py37hf484d3e_0 290 KB
freetype-2.9.1 | h8a8886c_1 822 KB
pcre-8.42 | h439df22_0 251 KB
libpng-1.6.34 | hb9fc6fc_0 334 KB
------------------------------------------------------------
Total: 143.7 MB
The following NEW packages will be INSTALLED:
cycler: 0.10.0-py37_0
dbus: 1.13.2-h714fa37_1
expat: 2.2.6-he6710b0_0
fontconfig: 2.13.0-h9420a91_0
freetype: 2.9.1-h8a8886c_1
glib: 2.56.2-hd408876_0
gst-plugins-base: 1.14.0-hbbd80ab_1
gstreamer: 1.14.0-hb453b48_1
icu: 58.2-h9c2bf20_1
jpeg: 9b-h024ee3a_2
kiwisolver: 1.0.1-py37hf484d3e_0
libpng: 1.6.34-hb9fc6fc_0
libuuid: 1.0.3-h1bed415_2
libxcb: 1.13-h1bed415_1
libxml2: 2.9.8-h26e45fe_1
matplotlib: 3.0.0-py37h5429711_0
pcre: 8.42-h439df22_0
pyparsing: 2.2.1-py37_0
pyqt: 5.9.2-py37h05f1152_2
python-dateutil: 2.7.3-py37_0
pytz: 2018.5-py37_0
qt: 5.9.6-h8703b6f_2
sip: 4.19.8-py37hf484d3e_0
tornado: 5.1.1-py37h7b6447c_0
Downloading and Extracting Packages
icu-58.2 | 22.5 MB | ########################################################################################################## | 100%
fontconfig-2.13.0 | 291 KB | ########################################################################################################## | 100%
gstreamer-1.14.0 | 3.8 MB | ########################################################################################################## | 100%
dbus-1.13.2 | 554 KB | ########################################################################################################## | 100%
pytz-2018.5 | 231 KB | ########################################################################################################## | 100%
qt-5.9.6 | 87.1 MB | ########################################################################################################## | 100%
glib-2.56.2 | 5.0 MB | ########################################################################################################## | 100%
python-dateutil-2.7. | 260 KB | ########################################################################################################## | 100%
libuuid-1.0.3 | 16 KB | ########################################################################################################## | 100%
jpeg-9b | 248 KB | ########################################################################################################## | 100%
gst-plugins-base-1.1 | 6.3 MB | ########################################################################################################## | 100%
kiwisolver-1.0.1 | 83 KB | ########################################################################################################## | 100%
matplotlib-3.0.0 | 6.8 MB | ########################################################################################################## | 100%
expat-2.2.6 | 187 KB | ########################################################################################################## | 100%
libxml2-2.9.8 | 2.0 MB | ########################################################################################################## | 100%
libxcb-1.13 | 502 KB | ########################################################################################################## | 100%
tornado-5.1.1 | 662 KB | ########################################################################################################## | 100%
cycler-0.10.0 | 13 KB | ########################################################################################################## | 100%
pyqt-5.9.2 | 5.6 MB | ########################################################################################################## | 100%
pyparsing-2.2.1 | 96 KB | ########################################################################################################## | 100%
sip-4.19.8 | 290 KB | ########################################################################################################## | 100%
freetype-2.9.1 | 822 KB | ########################################################################################################## | 100%
pcre-8.42 | 251 KB | ########################################################################################################## | 100%
libpng-1.6.34 | 334 KB | ########################################################################################################## | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
ERROR: ArgumentError: Package PyCall not found in current path:
- Run `import Pkg; Pkg.add("PyCall")` to install the PyCall package.
Stacktrace:
[1] require(::Module, ::Symbol) at ./loading.jl:820
[2] top-level scope at /home/chobbes/.julia/packages/Plots/7o1Vu/src/backends.jl:389
[3] eval at ./boot.jl:319 [inlined]
[4] _initialize_backend(::Plots.PyPlotBackend) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/backends.jl:388
[5] backend(::Plots.PyPlotBackend) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/backends.jl:196
[6] backend(::Symbol) at /home/chobbes/.julia/packages/Plots/7o1Vu/src/backends.jl:209
[7] pyplot() at /home/chobbes/.julia/packages/Plots/7o1Vu/src/backends.jl:29
[8] top-level scope at none:0
I’m surprised that I’m asked to install PyCall (in fact, LaTeXStrings too) manually. I thought it should have been done automatically in v1.0.
Edit: Now it works after manually installing PyCall and LaTexStrings. Ain’t they supposed to be installed automatically when I add PyPlot? I’m confused. I guess this is a bug in PyPlot’s Manifest.toml or Project.toml?
pfitzseb:
Oh, whoops, I meant
Forgot to say - Thank you!