配置：错误：C++ 编译器无法创建可执行文件

Question

我正在尝试从https://sourceforge.net/projects/sserver/?source=typ_redirect安装 Robocup 模拟器。正如构建文件夹中的自述文件中所述，我必须执行 /.configure 但出现此错误。

saurabh@saurabh-GL502VM:~/intelligent_systems/project/rcssserver-15.3.0$ ./configure 
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for g++... no
checking for c++... no
checking for gpp... no
checking for aCC... no
checking for CC... no
checking for cxx... no
checking for cc++... no
checking for cl.exe... no
checking for FCC... no
checking for KCC... no
checking for RCC... no
checking for xlC_r... no
checking for xlC... no
checking whether the C++ compiler works... no
configure: error: in `/home/saurabh/intelligent_systems/project/rcssserver-15.3.0':
configure: error: C++ compiler cannot create ex

现在当我检查我的 g++ 编译器时。

saurabh@saurabh-GL502VM:~/intelligent_systems/project/rcssserver-15.3.0$ g++ -v
The program 'g++' is currently not installed. You can install it by typing:
sudo apt install g++

但是当我尝试安装 g++ 编译器时，我得到了这个：

saurabh@saurabh-GL502VM:~/intelligent_systems/project/rcssserver-15.3.0$ sudo apt install g++
Reading package lists... Done
Building dependency tree       
Reading state information... Done
g++ is already the newest version (4:5.3.1-1ubuntu1).
The following packages were automatically installed and are no longer required:
  cpp-4.8 libcloog-isl4 xserver-xorg-legacy
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 7 not upgraded.

现在，我应该怎么做才能安装模拟器？谢谢！

Answer 1

apt-get可以找到 g++ 的多个版本，甚至可以并排安装它们。但显然命令行上的“g++”必须只是其中之一的快捷方式。您可以使用 更改该快捷方式sudo update-alternatives --config g++。