qwt/6.1.6: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-4528@3\.conan\data\qwt\6.1.6\_\_\build\6c6159a4f584fa3e04226b0eecee9dae7b3dd0b5 Microsoft (R) Program Maintenance Utility Version 14.16.27035.0 Copyright (C) Microsoft Corporation. All rights reserved. Microsoft (R) Program Maintenance Utility Version 14.16.27035.0 Copyright (C) Microsoft Corporation. All rights reserved. NMAKE : fatal error U1077: 'echo' : return code '0x49d' Stop. NMAKE : fatal error U1077: 'cd' : return code '0x2' Stop. qwt/6.1.6: ERROR: Package '6c6159a4f584fa3e04226b0eecee9dae7b3dd0b5' build failed qwt/6.1.6: WARN: Build folder C:\J\w\cci_PR-4528@3\.conan\data\qwt\6.1.6\_\_\build\6c6159a4f584fa3e04226b0eecee9dae7b3dd0b5 ERROR: qwt/6.1.6: Error in build() method, line 89 self.run("{} && nmake".format(vcvars)) ConanException: Error 2 while executing set "VSCMD_START_DIR=%CD%" && call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC/Auxiliary/Build/vcvarsall.bat" amd64 && nmake