我正在尝试使用buildozer将python / kivy应用程序编译为APK。 但是我遇到了这个错误：
Traceback (most recent call last):
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 153, in _main
status = self.run(options, args)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 382, in run
resolver.resolve(requirement_set)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 201, in resolve
self._resolve_one(requirement_set, req)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 365, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 311, in _get_abstract_dist_for
req.populate_link(self.finder, upgrade_allowed, self.require_hashes)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 225, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "/home/adrian/.TankstellenApp/.buildozer/android/platform/build-armeabi-v7a/build/venv/lib/python3.7/site-packages/pip/_internal/index.py", line 906, in find_requirement
'No matching distribution found for %s' % req
pip._internal.exceptions.DistributionNotFound: No matching distribution found for io (from -r requirements.txt (line 2))
我该如何解决？