opencv/2.4.13.7: WARN: Build folder is dirty, removing it: /home/conan/w/cci_PR-2743/.conan/data/opencv/2.4.13.7/_/_/build/ed776492fa34ce44da80d85603a27c1278e12af0 opencv/2.4.13.7: ERROR: Package 'ed776492fa34ce44da80d85603a27c1278e12af0' build failed opencv/2.4.13.7: WARN: Build folder /home/conan/w/cci_PR-2743/.conan/data/opencv/2.4.13.7/_/_/build/ed776492fa34ce44da80d85603a27c1278e12af0 ERROR: opencv/2.4.13.7: Error in build() method, line 147 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-2743/.conan/data/opencv/2.4.13.7/_/_/build/ed776492fa34ce44da80d85603a27c1278e12af0/build_subfolder' '--' '-j3'