[-- Attachment #1: Type: text/plain, Size: 508 bytes --] Hi Non-technical user here so please forgive any errors on my part. Wireguard-dkms build fails on Ubuntu 18.04 kernel 4.15.0-102-generic (and previous) with error: ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/wireguard-dkms.0.crash' Error! Bad return status for module build on kernel: 4.15.0-102-generic (x86_64) Consult /var/lib/dkms/wireguard/1.0.20200520/build/make.log for more information. Crash file attached. Would be grateful if anyone could advise. All the best Daniel [-- Attachment #2: dkms_make_log --] [-- Type: text/plain, Size: 3011 bytes --] ProblemType: Package DKMSBuildLog: DKMS make.log for wireguard-1.0.20200520 for kernel 4.15.0-102-generic (x86_64) Fri 29 May 18:37:12 BST 2020 make: Entering directory '/usr/src/linux-headers-4.15.0-102-generic' CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/main.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/noise.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/device.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/peer.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/timers.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/queueing.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/send.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/receive.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/socket.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/peerlookup.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/allowedips.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/ratelimiter.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/cookie.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/netlink.o CC [M] /var/lib/dkms/wireguard/1.0.20200520/build/crypto/zinc/chacha20/chacha20.o In file included from <command-line>:0:0: /var/lib/dkms/wireguard/1.0.20200520/build/socket.c: In function ‘send6’: /var/lib/dkms/wireguard/1.0.20200520/build/compat/compat.h:102:42: error: ‘const struct ipv6_stub’ has no member named ‘ipv6_dst_lookup’; did you mean ‘ipv6_dst_lookup_flow’? #define ipv6_dst_lookup_flow(a, b, c, d) ipv6_dst_lookup(a, b, &dst, c) + (void *)0 ?: dst ^ /var/lib/dkms/wireguard/1.0.20200520/build/socket.c:139:20: note: in expansion of macro ‘ipv6_dst_lookup_flow’ dst = ipv6_stub->ipv6_dst_lookup_flow(sock_net(sock), sock, &fl, ^~~~~~~~~~~~~~~~~~~~ PERLASM /var/lib/dkms/wireguard/1.0.20200520/build/crypto/zinc/chacha20/chacha20-x86_64.S scripts/Makefile.build:330: recipe for target '/var/lib/dkms/wireguard/1.0.20200520/build/socket.o' failed make[1]: *** [/var/lib/dkms/wireguard/1.0.20200520/build/socket.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make[1]: *** wait: No child processes. Stop. Makefile:1577: recipe for target '_module_/var/lib/dkms/wireguard/1.0.20200520/build' failed make: *** [_module_/var/lib/dkms/wireguard/1.0.20200520/build] Error 2 make: Leaving directory '/usr/src/linux-headers-4.15.0-102-generic' DKMSKernelVersion: 4.15.0-102-generic Date: Fri May 29 18:37:16 2020 DuplicateSignature: dkms:wireguard-dkms:1.0.20200520-0ppa1~18.04:/var/lib/dkms/wireguard/1.0.20200520/build/compat/compat.h:102:42: error: ‘const struct ipv6_stub’ has no member named ‘ipv6_dst_lookup’; did you mean ‘ipv6_dst_lookup_flow’? Package: wireguard-dkms 1.0.20200520-0ppa1~18.04 PackageVersion: 1.0.20200520-0ppa1~18.04 SourcePackage: wireguard-linux-compat Title: wireguard-dkms 1.0.20200520-0ppa1~18.04: wireguard kernel module failed to build