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vvv-school / vvv17

Resources for VVV17 School 🏫
https://vvv-school.github.io/vvv17
GNU General Public License v3.0
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codyco-superbuild building error. Expected and actual hash mismatch for YCM_BOOTSTRAP HASH mismatch #14

Closed EgorLakomkin closed 7 years ago

EgorLakomkin commented 7 years ago

Hello,

I faced an error while building codyco-superbuild on Ubuntu 16.04.1 LTS. I have attached the error listing below.

-- YCM not found. Bootstrapping it. -- Downloading YCMEPHelper.cmake - Attempt 1 of 3 -- Downloading YCMEPHelper.cmake - SUCCESS CMake Warning (dev) at build/CMakeFiles/YCMEPHelper.cmake:164 (message): YCM_BOOTSTRAP HASH mismatch

for file: [/home/egor/robot-code/codyco-superbuild/cmake/IncludeUrl.cmake]
  expected hash: [20835806b1ccb6950c8d235f86c16c938064a4d4]
    actual hash: [5faefc77acbbe7314d1ddd4560dd48b0eef291c5]

Perhaps it is outdated or you have local modification. Please consider upgrading it, or contributing your changes to YCM.

Call Stack (most recent call first): build/CMakeFiles/YCMEPHelper.cmake:1342 (_ycm_hash_check) cmake/YCMBootstrap.cmake:106 (ycm_bootstrap) CMakeLists.txt:92 (include) This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at build/CMakeFiles/YCMEPHelper.cmake:164 (message): YCM_BOOTSTRAP HASH mismatch

for file: [/home/egor/robot-code/codyco-superbuild/cmake/YCMBootstrap.cmake]
  expected hash: [8cad902fcd79fb2dc70d14af73d74fdd8c73df94]
    actual hash: [c696c89613248c243076b4d8a3dcc3bdd3e2e590]`

@francesco-romano @traversaro

traversaro commented 7 years ago

Hi @EgorLakomkin, this is actually just a warning, i.e. you can continue we the compilation of the superbuild perfectly fine.

It is due to https://github.com/robotology/ycm/issues/93 and https://github.com/robotology/codyco-superbuild/issues/162 , and it is actually quite confusing to the end users, as you are not the first one that reported it as an error. To avoid further confusion, I disabled the warning with https://github.com/robotology/codyco-superbuild/commit/6bbf5349d0417c67c2c2b2b07da57c5941c3bb1e until we actually fix the issue, if you update the codyco-superbuild repository (i.e. git pull in the superbuild directory) the warning should disappear.

EgorLakomkin commented 7 years ago

@traversaro Thank you! It worked, did not realize that it was just a warning.