如何在Android 10上生成ota_update.zip

我按照上的说明在Android 10上生成OTA_UPDATE.zip

我使用的命令是

./build/make/tools/releasetools/ota_from_target_files out/dist/kona-target_files-eng.jiezhang.zip ota_update.zip

但它报告的错误如下

2020-06-08 13:16:35 - common.py - WARNING : Failed to read SYSTEM/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read SYSTEM/etc/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read PRODUCT/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read PRODUCT/etc/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read PRODUCT_SERVICES/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read PRODUCT_SERVICES/etc/build.prop
2020-06-08 13:16:35 - common.py - WARNING : Failed to read ODM/build.prop
2020-06-08 13:16:36 - ota_from_target_files - ERROR   :
   ERROR:
Traceback (most recent call last):
  File "./build/make/tools/releasetools/ota_from_target_files", line 2414, in <module>
    main(sys.argv[1:])
  File "./build/make/tools/releasetools/ota_from_target_files", line 2341, in main
    source_file=OPTIONS.incremental_source)
  File "./build/make/tools/releasetools/ota_from_target_files", line 2080, in WriteABOTAPackageWithBrilloScript
    target_info = BuildInfo(OPTIONS.info_dict, OPTIONS.oem_dicts)
  File "./build/make/tools/releasetools/ota_from_target_files", line 311, in __init__
    self._fingerprint = self.CalculateFingerprint()
  File "./build/make/tools/releasetools/ota_from_target_files", line 424, in CalculateFingerprint
    self.GetBuildProp("ro.build.version.release"),
  File "./build/make/tools/releasetools/ota_from_target_files", line 371, in GetBuildProp
    raise common.ExternalError("couldn't find %s in build.prop" % (prop,))
ExternalError: couldn't find ro.build.version.release in build.prop

2020-06-08 13:16:35-common.py-警告：无法读取系统/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取系统/etc/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取PRODUCT/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取PRODUCT/etc/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取产品服务/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取产品/服务/etc/build.prop
2020-06-08 13:16:35-common.py-警告：无法读取ODM/build.prop
2020-06-08 13:16:36-来自目标文件的ota\u-错误：
错误：
回溯（最近一次呼叫最后一次）：
文件“/build/make/tools/releasetools/ota_from_target_files”，第2414行，在
main（sys.argv[1:]）
文件“/build/make/tools/releasetools/ota_from_target_files”，主文件第2341行
源文件=选项。增量文件（源）
文件“/build/make/tools/releasetools/ota_from_target_files”，第2080行，采用BrilloScript的可写包形式
target\u info=BuildInfo（OPTIONS.info目录，OPTIONS.oem目录）
文件“/build/make/tools/releasetools/ota\u from\u target\u files”，第311行，在\u init中__
self.\u fingerprint=self.CalculateFingerprint（）
文件“/build/make/tools/releasetools/ota_from_target_files”，第424行，CalculateFingerprint
self.GetBuildProp（“ro.build.version.release”），
文件“/build/make/tools/releasetools/ota_from_target_files”，第371行，在GetBuildProp中
引发common.ExternalError（“在build.prop”%（prop，）中找不到%s）
ExternalError:在build.prop中找不到ro.build.version.release

我检查了目标_文件中的内容-***.zip。看起来里面没有系统文件夹。因此python脚本找不到build.prop文件

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Android 10是否改变了生成OTA更新的规则？如何创建它？谢谢。

这方面有更新吗？有更新吗？我也被困在这个问题上。