在执行全量编译rk3568的target时候，遇到下面的错误信息：
[OHOS ERROR] [20813/20847] ACTION //build/ohos/packages:phone_sa_profile_install_info(//build/toolchain/ohos:ohos_clang_arm)
[OHOS ERROR] FAILED: packages/phone/sa_profile/sa_install_info.json packages/phone/sa_profile/merged_sa_profile.zip
[OHOS ERROR] /usr/bin/env ../../build/ohos/sa_profile/sa_profile_merge.py --src-sa-install-info-file packages/phone/sa_profile/src_sa_install_info.json --no-src-sa-install-info-file packages/phone/sa_profile/sa_profile_binary_phone.zip --sa-output-dir packages/phone/sa_profile/merged_sa --merged-sa-profile packages/phone/sa_profile/merged_sa_profile.zip --sa-install-info-file packages/phone/sa_profile/sa_install_info.json --sa-info-install-dest-dir system/profile --target-cpu arm --depfile gen/build/ohos/packages/phone_sa_profile_install_info.d
[OHOS ERROR] Traceback (most recent call last):
[OHOS ERROR] File "ohos/openharmony/out/rk3568/../../build/ohos/sa_profile/sa_profile_merge.py", line 131, in <module>
[OHOS ERROR] sys.exit(main())
[OHOS ERROR] File "ohos/openharmony/out/rk3568/../../build/ohos/sa_profile/sa_profile_merge.py", line 118, in main
[OHOS ERROR] result_file_list = _sa_profile_merge(json_src_subsystem_file_list,
[OHOS ERROR] File "ohos/openharmony/out/rk3568/../../build/ohos/sa_profile/sa_profile_merge.py", line 78, in _sa_profile_merge
[OHOS ERROR] json_result_file_list = json_merge_tool.merge(sorted(json_sa_input_files),
[OHOS ERROR] File "ohos/openharmony/build/ohos/sa_profile/sa_info_process/merge_sa_info.py", line 127, in merge
[OHOS ERROR] return self.__merge(sa_info_filelist, output_dir)
[OHOS ERROR] File "ohos/openharmony/build/ohos/sa_profile/sa_info_process/merge_sa_info.py", line 106, in __merge
[OHOS ERROR] rearragement.sort(merged_file, merged_file)
[OHOS ERROR] File "ohos/openharmony/build/ohos/sa_profile/sa_info_process/sort_sa_by_bootphase.py", line 284, in sort
[OHOS ERROR] self.__parse_json_file(source_file)
[OHOS ERROR] File "ohos/openharmony/build/ohos/sa_profile/sa_info_process/sort_sa_by_bootphase.py", line 59, in __parse_json_file
[OHOS ERROR] data = json.load(file)
[OHOS ERROR] File "ohos/openharmony/prebuilts/python/linux-x86/current/lib/python3.10/json/__init__.py", line 293, in load
[OHOS ERROR] return loads(fp.read(),
[OHOS ERROR] File "ohos/openharmony/prebuilts/python/linux-x86/current/lib/python3.10/json/__init__.py", line 346, in loads
[OHOS ERROR] return _default_decoder.decode(s)
[OHOS ERROR] File "ohos/openharmony/prebuilts/python/linux-x86/current/lib/python3.10/json/decoder.py", line 340, in decode
[OHOS ERROR] raise JSONDecodeError("Extra data", s, end)
[OHOS ERROR] json.decoder.JSONDecodeError: Extra data: line 56 column 2 (char 1878)
从上面错误中，看不出来是哪个文件造成的，考虑在python代码中添加打印语句来判断执行到哪一个文件出现错误，打印语句如下：
在merge_sa_info.py", line 106 中加上打印文件名信息
print(merged_file)
然后直接在命令行窗口执行上面的命令：
/usr/bin/env ../../build/ohos/sa_profile/sa_profile_merge.py --src-sa-install-info-file packages/phone/sa_profile/src_sa_install_info.json ......
执行命令后，发现处理cloudfileservice.json文件的时候出现错误，直接打开这个文件，发现格式存在问题，修改这个文件，然后重新执行build命令，问题解决。
./build.sh --product-name rk3568 --ccache
总的来说，对于编译过程中出现的python代码执行的错误，可以添加调试语句来查找root cause，然后解决问题。
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