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current_ver.dep.asc

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  {
    "url": "https://github.com/unicode-org/icu/releases/download/release-64-2/icu4c-64_2-src.tgz",
    "md5": "a3d18213beec454e3cdec9a3116d6b05"
  }
]
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error.txt

ERROR: Could not find a hash to verify ICU download.
          tools/icu/current_ver.dep may be incorrect.
          For the entry https://github.com/unicode-org/icu/releases/download/release-63-1/icu4c-63_1-src.zip,
          Expected one of these keys: sha1 sha224 sha384 sha256 sha512 md5