Question

我正致力于在Windows 7 64位计算机上安装/设置Julia。我在安装GLPK软件包时遇到问题。到目前为止，我已经尝试完全重新安装Julia但没有成功。我尝试删除.julia文件夹和我的偏好但没有成功。我总是收到以下错误：

julia> Pkg.build("GLPK")
INFO: Building GLPK
INFO: Attempting to Create directory C:\Users\Justin\.julia\v0.3\GLPK\deps\downl
oads
INFO: Directory C:\Users\Justin\.julia\v0.3\GLPK\deps\downloads already created
INFO: Downloading file http://downloads.sourceforge.net/project/winglpk/winglpk/
GLPK-4.52/winglpk-4.52.zip
INFO: Done downloading file http://downloads.sourceforge.net/project/winglpk/win
glpk/GLPK-4.52/winglpk-4.52.zip
INFO: Attempting to Create directory C:\Users\Justin\.julia\v0.3\GLPK\deps\src
INFO: Directory C:\Users\Justin\.julia\v0.3\GLPK\deps\src already created
INFO: Attempting to Create directory C:\Users\Justin\.julia\v0.3\GLPK\deps
INFO: Directory C:\Users\Justin\.julia\v0.3\GLPK\deps already created
INFO: Attempting to Create directory C:\Users\Justin\.julia\v0.3\GLPK\deps\src\g
lpk-4.52\w32

7-Zip [64] 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18

Processing archive: C:\Users\Justin\.julia\v0.3\GLPK\deps\downloads\winglpk-4.52
.zip

Error: Can not open file as archive

================================[ ERROR: GLPK ]=================================


failed process: Process(`7z x 'C:\Users\Justin\.julia\v0.3\GLPK\deps\downloads\w
inglpk-4.52.zip' -y '-oC:\Users\Justin\.julia\v0.3\GLPK\deps\src'`, ProcessExite
d(2)) [2]
while loading C:\Users\Justin\.julia\v0.3\GLPK\deps\build.jl, in expression star
ting on line 66

================================================================================


================================[ BUILD ERRORS ]================================


WARNING: GLPK had build errors.

 - packages with build errors remain installed in C:\Users\Justin\.julia\v0.3
 - build the package(s) and all dependencies with `Pkg.build("GLPK")`
 - build a single package by running its `deps/build.jl` script

================================================================================

在我看来，问题出在＆＃39; winglpk-4.52.zip＆＃39;如果我尝试直接访问和解压缩该文件，我会收到一个错误，指出该文件无效且Windows无法打开。我尝试删除GLPK并从头开始，也没有运气。

有任何想法或建议吗？

更新：手动下载文件＆＃39; winglpk-4.52.zip＆＃39;并提取到位置＆＃39; C：\ Users \ Justin.julia \ v0.3 \ GLPK \ deps \ src＆＃39;解决了这个问题。

但是，我收到另一个错误（不确定它是否相关）：

Cannot construct an affine expression with a term of type 
(GenericAffExpr{Float64,Variable})*(Float64)
while loading In[6], in expression starting on line 16

 in error at error.jl:21 (repeats 2 times)

此错误与命令有关：

@setObjective(myModel, Max, sum{x[i,j]*data[i,5], i=1:n,j=1:8});

我在我的Mac上安装了Julia，这不会出错...

Answer 1

第二个错误（来自JuMP），看起来是因为你有数据和变量混淆 - 它需要是数据*变量（直到Julia 0.4被释放，这可以修复！），即

@setObjective(myModel, Max, sum{data[i,5]*x[i,j], i=1:n,j=1:8});

我不确定为什么7z无法自动提取GLPK，但您的修复效果很好。您可以使用BinDeps.jl提交问题。

GLPK安装错误

1 个答案: