GLPK安装错误

Question

我正在Windows 7 64位机上安装/安装Julia。我在安装GLPK软件包时遇到了问题。到目前为止，我一直试图完全重新安装朱莉娅，但没有成功。我尝试删除.julia文件夹和我的首选项，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，问题似乎是‘winglpk 4.52.zip’，如果我试图直接访问和解压缩文件，我会得到一个错误，说明文件无效，窗口无法打开。我试着删除GLPK，从零开始，那里也没有运气。

有什么想法或建议吗？

更新:手动下载文件‘winglpk 4.52.zip’并解压缩到'C:\Users\Justin.julia\v0.3\GLPK\deps\src‘解决了这个问题。

但是，我得到了另一个错误(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)

此错误与以下命令有关：

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

我在我的mac上安装了朱莉娅，这不会出错。

Answer 1

第二个错误(来自JuMP)，看起来是因为数据和变量混淆了--它需要是数据*变量(直到Julia0.4发布并且可以修复！)，即

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

我不知道为什么7z不能自动提取GLPK，但是您的修复很好。您可以向BinDeps.jl提交一个问题。