Merge branch 'release-v0.4.0' into release

Author: brizental

CHANGELOG.md

@@ -1,6 +1,15 @@
 # Unreleased changes
 
-[Full changelog](https://github.com/mozilla/glean.js/compare/v0.3.0...main)
+[Full changelog](https://github.com/mozilla/glean.js/compare/v0.4.0...main)
+
+# v0.4.0 (2021-03-10)
+
+[Full changelog](https://github.com/mozilla/glean.js/compare/v0.3.0...v0.4.0)
+
+* [#92](https://github.com/mozilla/glean.js/pull/92): Remove `web-ext-types` from `peerDependencies` list.
+* [#98](https://github.com/mozilla/glean.js/pull/98): Add external APIs for setting the Debug View Tag and Source Tags.
+* [#99](https://github.com/mozilla/glean.js/pull/99): BUGFIX: Add a default ping value in the testing APIs.
+
 # v0.3.0 (2021-02-24)
 
 [Full changelog](https://github.com/mozilla/glean.js/compare/v0.2.0...v0.3.0)

bin/prepare-release.sh

@@ -99,6 +99,7 @@ if [ "$DOIT" = y ]; then
 # Unreleased changes
 
 [Full changelog](https://github.com/mozilla/glean.js/compare/v${NEW_VERSION}...main)
+
 ${CHANGELOG}
 EOL
 fi

docs/troubleshooting.md

@@ -0,0 +1,18 @@
+# Troubleshooting
+
+## "Cannot find module '@mozilla/glean'"
+
+Glean.js does not have a [`main`](https://nodejs.org/api/packages.html#packages_main_entry_point_export) package entry point. Instead it relies on a series of entry points depending on the platform you are targeting.
+
+In order to import Glean use `import Glean from '@mozilla/glean/<your-platform>`.
+
+> **Note**: Currently, the only supported platform is `webext`. Therefore the only valid import is `@mozilla/glean/webext`.
+
+## "Module not found: Error: Can't resolve '@mozilla/glean/webext' in '...'"
+
+Glean.js relies on Node.js' [subpath exports](https://nodejs.org/api/packages.html#packages_subpath_exports) feature to define multiple package entry points.
+
+Please make sure that you are using a supported Node.js runtime (>= v12.7.0) and also make sure
+the tools you are using support this Node.js feature.
+
+> **Note**: If using Webpack, make sure you have a version >= 5.0.0 (see v5.0.0 [release notes](https://webpack.js.org/blog/2020-10-10-webpack-5-release/#major-changes-new-nodejs-ecosystem-features) for details).