Tools: Fixed build

gulpfile.js

@@ -45,7 +45,7 @@ gulp.task('watch', function() {
 
 	// For watching, we use the actual tsc tool because it's more robust and
 	// doesn't crash when there's an error
-	const promise = execa('node', ['node_modules/typescript/bin/tsc', '--watch', '--project', 'tsconfig.json'], { cwd: `${__dirname}` });
+	const promise = execa('node', ['node_modules/typescript/bin/tsc', '--watch', '--project', 'tsconfig.dev.json'], { cwd: `${__dirname}` });
 	promise.stdout.pipe(process.stdout);
 });
 

tsconfig.dev.json

@@ -0,0 +1,11 @@
+{
+	"extends": "./tsconfig",
+    "compilerOptions": {
+		// There's currently a bug in Electron that makes it fail to load the source maps
+		// (it tries to load them from the root of the app even though they are in
+		// sub-folders). So to have source maps anyway in dev, we use inline source maps.
+		// https://github.com/electron/electron/issues/22996
+		"sourceMap": false,
+		"inlineSourceMap": true
+	}
+}