failing on 1.10 to 1.11 on rebuilding assets

[am1cable]

i've tried uninstalling and reinstalling node-theme-vanilla, but no dice. rebuilding assets separately afterwards leaves layouts weird and general problems with some plugins.

2018-12-28T18:16:59.685Z [4567/3231] - error: [build] Encountered error preparing for build
Error: [[error:theme-not-found]]
    at /var/www/nodebb/src/meta/themes.js:212:21
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5324:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5331:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3888:9
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
    at iterateeCallback (/var/www/nodebb/node_modules/async/dist/async.js:992:24)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3885:13
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
2018-12-28T18:16:59.685Z [4567/3231] - error: [build] Encountered error during build step
Error: [[error:theme-not-found]]
    at /var/www/nodebb/src/meta/themes.js:212:21
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5324:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5331:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3888:9
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
    at iterateeCallback (/var/www/nodebb/node_modules/async/dist/async.js:992:24)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3885:13
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
Error occurred during upgrade: Error: [[error:theme-not-found]]
    at /var/www/nodebb/src/meta/themes.js:212:21
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5324:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5331:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3888:9
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
    at iterateeCallback (/var/www/nodebb/node_modules/async/dist/async.js:992:24)
    at /var/www/nodebb/node_modules/async/dist/async.js:969:16
    at /var/www/nodebb/node_modules/async/dist/async.js:3885:13
    at /var/www/nodebb/node_modules/async/dist/async.js:473:16
2018-12-28T18:16:59.686Z [4567/3231] - error: [themes] Unable to parse theme.json nodebb-theme-vanilla
2018-12-28T18:16:59.689Z [4567/3231] - error: uncaughtException: Callback was already called.
Error: Callback was already called.
    at /var/www/nodebb/node_modules/async/dist/async.js:966:32
    at /var/www/nodebb/node_modules/async/dist/async.js:1137:13
    at /var/www/nodebb/src/meta/themes.js:114:7
    at /var/www/nodebb/node_modules/graceful-fs/graceful-fs.js:78:16
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3) {"error":{},"stack":"Error: Callback was already called.\n    at /var/www/nodebb/node_modules/async/dist/async.js:966:32\n    at /var/www/nodebb/node_modules/async/dist/async.js:1137:13\n    at /var/www/nodebb/src/meta/themes.js:114:7\n    at /var/www/nodebb/node_modules/graceful-fs/graceful-fs.js:78:16\n    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3)","exception":true,"date":"Fri Dec 28 2018 18:16:59 GMT+0000 (UTC)","process":{"pid":3231,"uid":0,"gid":0,"cwd":"/var/www/nodebb","execPath":"/usr/bin/node","version":"v8.14.0","argv":["/usr/bin/node","/var/www/nodebb/nodebb","upgrade"],"memoryUsage":{"rss":139333632,"heapTotal":105914368,"heapUsed":72311456,"external":19339472}},"os":{"loadavg":[0.47900390625,0.3271484375,0.24462890625],"uptime":3239},"trace":[{"column":32,"file":"/var/www/nodebb/node_modules/async/dist/async.js","function":null,"line":966,"method":null,"native":false},{"column":13,"file":"/var/www/nodebb/node_modules/async/dist/async.js","function":null,"line":1137,"method":null,"native":false},{"column":7,"file":"/var/www/nodebb/src/meta/themes.js","function":null,"line":114,"method":null,"native":false},{"column":16,"file":"/var/www/nodebb/node_modules/graceful-fs/graceful-fs.js","function":null,"line":78,"method":null,"native":false},{"column":3,"file":"fs.js","function":"FSReqWrap.readFileAfterClose [as oncomplete]","line":511,"method":"readFileAfterClose [as oncomplete]","native":false}]}

i have my own custom theme, but i deactivated it and removed the symlink beforehand. so i don't see how it should be affecting this

[am1cable]

solution - i hadn't removed my custom theme properly. you need to reset to the default theme, remove the link, and use npm rm to completely remove your theme so it doesn't check for it.

i'm not sure why my calendar plugin broke as well, or why the bootswatch theme i was using as a base has stopped working either. but the build itself is working.