From 6d2de206abdcce9e176bbc157cd27b37a20b0f97 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20Vel=C3=A1squez?= <luvejo.dev@gmail.com>
Date: Fri, 12 May 2023 12:21:00 -0500
Subject: [PATCH] [client-preset] Error message enhancement (#9315)

* docs: enhance error message

* style: format code with Prettier

* Create cool-waves-impress.md

---------

Co-authored-by: Saihajpreet Singh <saihajpreet.singh@gmail.com>
---
 .changeset/cool-waves-impress.md     | 5 +++++
 packages/presets/client/src/index.ts | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/cool-waves-impress.md

diff --git a/.changeset/cool-waves-impress.md b/.changeset/cool-waves-impress.md
new file mode 100644
index 00000000000..de178ddba1e
--- /dev/null
+++ b/.changeset/cool-waves-impress.md
@@ -0,0 +1,5 @@
+---
+"@graphql-codegen/client-preset": patch
+---
+
+improve error message 
diff --git a/packages/presets/client/src/index.ts b/packages/presets/client/src/index.ts
index d9e41185ae9..60a450a8950 100644
--- a/packages/presets/client/src/index.ts
+++ b/packages/presets/client/src/index.ts
@@ -101,7 +101,9 @@ export const preset: Types.OutputPreset<ClientPresetConfig> = {
   prepareDocuments: (outputFilePath, outputSpecificDocuments) => [...outputSpecificDocuments, `!${outputFilePath}`],
   buildGeneratesSection: options => {
     if (!isOutputFolderLike(options.baseOutputDir)) {
-      throw new Error('[client-preset] target output should be a directory, ex: "src/gql/"');
+      throw new Error(
+        '[client-preset] target output should be a directory, ex: "src/gql/". Make sure you add "/" at the end of the directory path'
+      );
     }
 
     if (options.plugins.length > 0 && Object.keys(options.plugins).some(p => p.startsWith('typescript'))) {