xmgrace build fails: Requested variants "+perl5_28" do not match those the build was started with: "+perl5_26"

[barbarabrena]

I work with MacOs Catalina 10:15:1 and I have installed the related macports. When I try to install xmgrace or motifs, or gnuplot, I get the message:

Error: Requested variants "+perl5_28" do not match those the build was started with: "+perl5_26".
Error: Please use the same variants again, or run 'port clean ossp-uuid' first to remove the existing partially completed build.

I have no idea how to solve this. It worked smoothly in the previous OS, like Sierra and high sierra.

In addition the recommended 'port clean ossp-uuid' does not work for me. An I do not know how to modify which variants I am requested. Thank you a lot for your help, I am totally stuck with this.

[ryandesign (Ryan Carsten Schmidt)]

sudo port clean ossp-uuid should fix the problem. If not, does running that command give you some kind of error message?

[barbarabrena]

Thank you Ryan, it worked! I do not know why the very same command line:sudo port clean ossp-uuid did not work for me before, but now it did and I got xmgrace. I am really thankful for your quick response, and I am happy to be able to continue using macports, which has always been so smooth for me. Have a great day, and THANKS again!! Barbara