# Build fails with `compatibilityVersion: 4` and TypeScript templates added via `addTemplate`
Externals are not correctly taken into account during the build step; introduced in 3.13.2
pending triageneeds reproductionclosed-by-botpossible regression
Proposal: Add Webpack dashboard to dev server
enhancementgood first issue2.x
future: { compatibilityVersion: 4 } Messes up some types
pending triage