Hugo building error "execute of template failed"

[SasakiYuki]

Describe the bug
Hi, I will report it because I could not solve it.(And Im not Native English Speaker, Sorry.)

I Commanded hugo, but cant build Site.

error log is here.

Building sites … ERROR 2019/02/20 12:45:33 [jp] page "/root/project/content/posts/flutter_tips_002.md": render of "page" failed: execute of template failed: template: posts/single.html:6:5: executing "posts/single.html" at <partial "head.html" ...>: error calling partial: "/root/project/themes/dream-plus/layouts/partials/head.html:7:50": execute of template failed: template: partials/head.html:7:50: executing "partials/head.html" at <$.Site.Params.author...>: can't evaluate field name in type interface {}
ERROR 2019/02/20 12:45:33 [jp] page "/root/project/content/posts/game_2018_of_the_year.md": render of "page" failed: execute of template failed: template: posts/single.html:6:5: executing "posts/single.html" at <partial "head.html" ...>: error calling partial: "/root/project/themes/dream-plus/layouts/partials/head.html:7:50": execute of template failed: template: partials/head.html:7:50: executing "partials/head.html" at <$.Site.Params.author...>: can't evaluate field name in type interface {}
ERROR 2019/02/20 12:45:33 [jp] page "/root/project/content/posts/flutter_tips_001.md": render of "page" failed: execute of template failed: template: posts/single.html:6:5: executing "posts/single.html" at <partial "head.html" ...>: error calling partial: "/root/project/themes/dream-plus/layouts/partials/head.html:7:50": execute of template failed: template: partials/head.html:7:50: executing "partials/head.html" at <$.Site.Params.author...>: can't evaluate field name in type interface {}
ERROR 2019/02/20 12:45:33 [jp] page "/root/project/content/posts/game_mtga_001_newbie.md": render of "page" failed: execute of template failed: template: posts/single.html:6:5: executing "posts/single.html" at <partial "head.html" ...>: error calling partial: "/root/project/themes/dream-plus/layouts/partials/head.html:7:50": execute of template failed: template: partials/head.html:7:50: executing "partials/head.html" at <$.Site.Params.author...>: can't evaluate field name in type interface {}
Total in 421 ms
Error: Error building site: failed to render pages: [jp] page "/root/project/content/posts/kotlin_tutorial_basic_001.md": render of "page" failed: execute of template failed: template: posts/single.html:6:5: executing "posts/single.html" at <partial "head.html" ...>: error calling partial: "/root/project/themes/dream-plus/layouts/partials/head.html:7:50": execute of template failed: template: partials/head.html:7:50: executing "partials/head.html" at <$.Site.Params.author...>: can't evaluate field name in type interface {}
Exited with code 255

Previously I could deploy it without probleml. (on 27 Dec 2018)

I deployed it after a long absence and failed. First of all it was said that the version of hugo is old, so I updated dockerImage.

After that, the attached error came out. How should I do?

Your project
Project repository is here. https://github.com/SasakiYuki/bibo-log

Hugo version
cibuilds/hugo:latest using docker image is this.

[UtkarshVerma]

@SasakiYuki Dream Plus config variables have been modified in the recent commits, that is the layout of config.toml file has been updated for organizing variables in a better way.
Simply updating your config.toml file will fix the above error. You may refer to the example config as a reference.

Particularly, update the author config since that's what's throwing off the error during the build.

[SasakiYuki]

thank you for answering!

Is the correct link here ?

I tried trying it, but did it match? https://github.com/SasakiYuki/bibo-log/commit/0fd67d740e4e9591f9f45e0458e400225562f509

[UtkarshVerma]

@SasakiYuki Sorry I didn't notice the broken link. I have now fixed the link in my comment. Basically you have to refer to the posts.toml file in the exampleSite folder. The file you've referred to in your comment is nothing but a symbolic link.

[SasakiYuki]

@UtkarshVerma ありがとう！！！ TY!!! It is solved. Thank you always for a nice update. I will continue to use it!