Merge pull request #949 from rishabh3112/fix/not-found

fix: module not found error
webpack · Jun 11, 2019 · 0acd33e · 0acd33e
2 parents 3857b0d + 23eddcb
commit 0acd33e
Showing 1 changed file with 14 additions and 10 deletions.
diff --git a/bin/cli.js b/bin/cli.js
@@ -71,18 +71,22 @@ For more information, see https://webpack.js.org/api/cli/.`);
 			options = require("./utils/convert-argv")(argv);
 		} catch (err) {
 			if (err.code === "MODULE_NOT_FOUND") {
-				let errorMessage =
-					"\n\u001b[31mwebpack not installed, consider installing it using \n\u001b[32mnpm install --save-dev webpack\n";
+				const moduleName = err.message.split("'")[1];
+				let instructions = "";
+				let errorMessage = "";
 
-				if (process.env.npm_execpath !== undefined && process.env.npm_execpath.includes("yarn")) {
-					errorMessage =
-						"\n\u001b[31mwebpack not installed, consider installing it using \n\u001b[32myarn add webpack --dev\n";
-				}
+				if (moduleName === "webpack") {
+					errorMessage = `\n${moduleName} not installed`;
+					instructions = `Install webpack to start bundling: \u001b[32m\n  $ npm install --save-dev ${moduleName}\n`;
 
-				console.error(errorMessage);
-				Error.stackTraceLimit = 1;
-				process.exitCode = 1;
-				return;
+					if (process.env.npm_execpath !== undefined && process.env.npm_execpath.includes("yarn")) {
+						instructions = `Install webpack to start bundling: \u001b[32m\n $ yarn add ${moduleName} --dev\n`;
+					}
+					Error.stackTraceLimit = 1;
+					console.error(`${errorMessage}\n\n${instructions}`);
+					process.exitCode = 1;
+					return;
+				}
 			}
 
 			if (err.name !== "ValidationError") {