相关疑难解决方法(0)

我需要安装svglite,但是出现了一个错误,说我首先需要gdtools,所以我尝试安装gdtools并得到以下错误:

   > install.packages("gdtools", lib="/usr/local/lib/R/3.4/site-library")
trying URL 'https://cran.rstudio.com/src/contrib/gdtools_0.1.4.tar.gz'
Content type 'application/x-gzip' length 33931 bytes (33 KB)
==================================================
downloaded 33 KB

* installing *source* package ‘gdtools’ ...
** package ‘gdtools’ successfully unpacked and MD5 sums checked
Using PKG_CFLAGS=-I/usr/local/opt/cairo/include/cairo
Using PKG_LIBS=-L/usr/local/opt/cairo/lib -lcairo
** libs
clang++  -I/usr/local/Cellar/r/3.4.1_1/lib/R/include -DNDEBUG -I/usr/local/opt/cairo/include/cairo -I../inst/include/ -I"/usr/local/lib/R/3.4/site-library/Rcpp/include" -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/include   -fPIC  -g -O2  -c CairoContext.cpp -o CairoContext.o
In file included from CairoContext.cpp:7:
/usr/local/opt/cairo/include/cairo/cairo-ft.h:46:10: fatal error: 'ft2build.h' file not found
#include <ft2build.h>
         ^
1 error generated.
make: *** [CairoContext.o] Error 1 …

我对Python编码比较陌生，想了解Python中的统计信息和数据管理。为此，我想安装Matplotlib，这给了我一些问题。

我看到其他人有此问题，但是我还没有完全了解如何解决它。

要安装我使用

pip install matplotlib

我安装了以下规格

• Windows 10
• Python 3.8
• Microsoft Studio 2019

我遇到的第一个错误是安装Microsoft Studio，所以我做到了。我也尝试更新点子

BUILDING MATPLOTLIB 
 matplotlib: yes [3.1.1] 
 python: yes [3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:21:23) [MSC v.1916 32 bit (Intel)]] 
 platform: yes [win32] 

...

 checkdep_freetype2.c
    src/checkdep_freetype2.c(1): fatal error C1083: Cannot open include file: 'ft2build.h': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.23.28105\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2
    ----------------------------------------
ERROR: Command errored out with exit status 1: