Android Buildozer Numpy运行时错误：工具链断开：无法链接简单的C程序

用Python编写我的第一个Android应用程序并使用Buildozer进行打包。因为我以后需要在项目中使用numpy，所以我尝试打包以下测试代码：

import numpy
import kivy
kivy.require('1.0.6')
from kivy.app import App
from kivy.uix.button import Button

class TestApp(App):
    def build(self):
        return Button(text='Hello World')

TestApp().run()

但是，我得到了以下错误：

Traceback (most recent call last):
  File "setup.py", line 251, in <module>
    setup_package()
  File "setup.py", line 243, in setup_package
    setup(**metadata)
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/core.py", line 169, in setup
    return old_setup(**new_attr)
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/distutils/core.py", line 152, in setup
    dist.run_commands()
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/command/build_ext.py", line 59, in run
    self.run_command('build_src')
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/distutils/cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/command/build_src.py", line 153, in run
    self.build_sources()
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/command/build_src.py", line 164, in build_sources
    self.build_library_sources(*libname_info)
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/command/build_src.py", line 299, in build_library_sources
    sources = self.generate_sources(sources, (lib_name, build_info))
  File "/home/kivy/Desktop/cam/.buildozer/android/platform/build/build/other_builds/numpy/armeabi-v7a/numpy/numpy/distutils/command/build_src.py", line 386, in generate_sources
    source = func(extension, build_dir)
  File "numpy/core/setup.py", line 686, in get_mathlib_info
    raise RuntimeError("Broken toolchain: cannot link a simple C program")
RuntimeError: Broken toolchain: cannot link a simple C program


  STDERR:
# Command failed: /usr/bin/python -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=sdl2 --requirements=kivy,numpy --arch armeabi-v7a --copy-libs --color=always --storage-dir=/home/kivy/Desktop/cam/.buildozer/android/platform/build
# 
# Buildozer failed to execute the last command
# The error might be hidden in the log above this error
# Please read the full log, and search for it before
# raising an issue with buildozer itself.
# In case of a bug report, please add a full log with log_level = 2

请注意，当我从python代码中删除“import numpy”并从buildozer.spec文件的需求列表中删除“numpy”时，我的代码得到了完美的打包。我在预装了Buildozer的VM虚拟机上运行这个

---

而且，这不仅仅是Numpy给了我这个问题——OpenCV给了我完全相同的错误。如果需要的话，我们会单独发布

这个问题在pythonforandroid（p4a）项目中有报道，但不知道它是稳定p4a的实际问题。然而，通过链接你可以找到。我没有测试它，但不同的人说它有效

您可以尝试使用此修复程序构建numpy，以下是您需要的：

确保使用以下命令清除当前建筑过程中的所有剩余部分：

buildozer distclean

使用以下命令克隆具有修复的p4a分支：

git克隆-b p4a\u numpy\u修复https://github.com/mahomahomaho/python-for-android 修复numpy

将

buildozer.spec

更改为使用此克隆版本的p4a（使用实际路径）：

p4a.source\u dir=/home/ubuntu/p4a\u numpy\u fix

---

然后再次运行building apk。如果一切正常，您将能够构建apk。如果没有，您将面临另一个错误，这里没有保证：（

在第2步中，我收到以下消息：

致命：在上游源中找不到远程分支p4a\u numpy\u修复程序

您应该将第2步替换为

git clonegit://github.com/kivy/python-for-android

自2018年1月以来，因为@increment合并了您的分支。警告。此命令buildozer distclean将清除所有缓存工具，如SDK和NDK，以后下载会很累。您的解决方案运行良好，但存在另一个错误。您能否帮助我解决此问题“错误：'struct lconv'没有名为'decimal_point'的成员”

title = My Application
package.name = myapp
package.domain = org.test
source.dir = .
source.include_exts = py,png,jpg,kv,atlas
version = 1.0

requirements = kivy,numpy

orientation = portrait
osx.kivy_version = 1.9.1
fullscreen = 0
android.api = 19
android.sdk = 20
android.ndk = 9c
android.arch = armeabi-v7a
log_level = 2
warn_on_root = 1