E0276: newline is not allowed after 'namespace'

In TypeScript, the namespace keyword must be followed by the namespace's name. It is a syntax error to write a newline between namespace and the following name:

namespace
  reallyLongNamespaceName {
  export class Error {}
}

To fix this error, put the namespace's name on the same line as the namespace keyword:

namespace reallyLongNamespaceName {
  export class Error {}
}

Introduced in quick-lint-js version 2.8.0.

Documentation for other errors