fix(serve): improve error message when port is in use (angular#4167)

beeman · MRHarrison · commit ba909247ffac · 2017-02-08T16:05:44.000-08:00
diff --git a/packages/angular-cli/commands/serve.run.ts b/packages/angular-cli/commands/serve.run.ts
@@ -50,7 +50,9 @@ function checkExpressPort(commandOptions: ServeTaskOptions) {
     .then((foundPort: number) => {
 
       if (commandOptions.port !== foundPort && commandOptions.port !== 0) {
-        throw new SilentError(`Port ${commandOptions.port} is already in use.`);
+        throw new SilentError(
+          `Port ${commandOptions.port} is already in use. Use '--port' to specify a different port.`
+        );
       }
 
       // otherwise, our found port is good

Original file line number	Diff line number	Diff line change
`@@ -50,7 +50,9 @@ function checkExpressPort(commandOptions: ServeTaskOptions) {`
`50`	`50`	`.then((foundPort: number) => {`
`51`	`51`
`52`	`52`	`if (commandOptions.port !== foundPort && commandOptions.port !== 0) {`
`53`		- throw new SilentError(`Port ${commandOptions.port} is already in use.`);
	`53`	`+ throw new SilentError(`
	`54`	+ `Port ${commandOptions.port} is already in use. Use '--port' to specify a different port.`
	`55`	`+ );`
`54`	`56`	`}`
`55`	`57`
`56`	`58`	`// otherwise, our found port is good`