As a quick update: I cannot wait long for this fix so I uninstalled my 2.6.4 and manually installed it from tar.bz. I used the migration page on macports installation and backed up all my ports. After the manual installation finished, I used the restore script and got all my ports back. Now I am able to install all ports.

I am still having port install issues. I did the following: First check if you have MacOS11.2sdk installed by looking into : /Library/Developer/CommandLineTools/SDKs This is my output: [/Library/Developer/CommandLineTools/SDKs] $ ls -l total 0 drwxr-xr-x 7 root wheel 224B Jul 28 2020 MacOSX10.14.sdk/ drwxr-xr-x 8 root wheel 256B Mar 17 07:18 MacOSX10.15.sdk/ drwxr-xr-x 7 root wheel 224B Jul 17 2020 MacOSX11.0.sdk/ drwxr-xr-x 7 root wheel 224B Nov 30 04:33 MacOSX11.1.sdk/ 2. Download 11.2sdk manually from apple developer side and install. Even after the install I dont see 11.2 in the folder above. Am i missing anything here.