Rails: Sprockets::Rails::Helper::AssetNotPrecompiled in development
Solution 1:
Neither of these worked for me (rails-5.0.7, sprockets-3.7.2, sprockets-rails-3.2.1):
config.assets.debug = false
config.assets.unknown_asset_fallback = true
But this did:
config.assets.check_precompiled_asset = false
Solution 2:
I had the same problem and fixed it by deleting all the cache files inside the tmp folder
rm -rf tmp/cache/assets