Cosmos SDK Blog tutorial - build problem

Hey guy, trying to learn about cosmoms and following the blog tutorial when i build i get this problem cannot build app: github.com/keybase/go-keychain cgo-gcc-prolog:203:11: warning: ‘SecTrustedApplicationCreateFromPath’ is deprecated: first deprecated in macOS 10.15 - No longer supported [-Wdeprecated-declarations] /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Security.framework/Headers/SecTrustedApplication.h:59:10: note: ‘SecTrustedApplicationCreateFromPath’ has been explicitly marked deprecated here github.com/krippilippa/blog/x/blog/types …/…/x/blog/types/codec.go:11:24: undefined: MsgCreatePost …/…/x/blog/types/codec.go:18:4: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:8:18: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:10:67: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:11:10: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:19:11: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:24:11: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:29:12: undefined: MsgCreatePost …/…/x/blog/types/messages_post.go:38:12: undefined: MsgCreatePost…

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