speedo build error on 2.2.6

Hi, I've tried speedo build on GnuPG 2.2.6, but I've got an error like this: $ make -f build-aux/speedo.mk native make -f /gnupg-2.2.6/build-aux/speedo.mk UPD_SWDB=1 TARGETOS=native WHAT=release WITH_GUI=0 all make[1]: Entering directory '/gnupg-2.2.6' gpgv: Signature made Fri Apr 13 08:47:30

Speedo build error on GnuPG 2.2.6

Hi, I've tried speedo build on GnuPG 2.2.6, but I've got an error like this: $ make -f build-aux/speedo.mk native make -f /gnupg-2.2.6/build-aux/speedo.mk UPD_SWDB=1 TARGETOS=native WHAT=release WITH_GUI=0 all make[1]: Entering directory '/gnupg-2.2.6' gpgv: Signature made Fri Apr 13 08:47:30