I just had this issue on Docker for Windows v. 1.12.0 beta21 but due to be using cygwin instead of CMD or PowerShell. Using cmd / powershell works as expected.
Share and learn in the Docker community.
I just had this issue on Docker for Windows v. 1.12.0 beta21 but due to be using cygwin instead of CMD or PowerShell. Using cmd / powershell works as expected.