Error in local theme index.js should not be ignored and reported as "cannot resolve plugin ..."

[shigma]

• I confirm that this is a issue rather than a question.

Bug report

Version

1.0.0-alpha.36

Steps to reproduce

.vuepress
├─ config.js
├─ theme
   ├─ index.js
   ├─ and other files ...

Assuming that an error was encounted in index.js, vuepress will leave a message cannot resolve plugin .../.vuepress/theme. But this behavior is rather strange and may mislead user with an indication that the theme is not found. Also, I think errors in local theme index file should not be simply ignored.

What is expected?

• stop the process like an error was encounted in the config.js, or
• provide a better warning like an error was encounted in ......

What is actually happening?

cannot resolve plugin .../.vuepress/theme

Other relevant information

• Your OS: N/A
• Node.js version: N/A
• Browser version: N/A
• Is this a global or local install? N/A
• Which package manager did you use for the install? N/A

[ulivz]

The theme's configuration file themeEntryFile also supports all the plugin api so it'll be applied like a plugin, so this unfriendly log should also occur in the normal plugin.

We truly need to enhance the log, contribution welcome! and I trust your sense!