fix(node): improve require esm error messages (#19853)

Part of #19842.

Closes #19583
Closes #16913

cli/lsp/analysis.rs

@@ -198,7 +198,7 @@ impl<'a> TsResponseImportMapper<'a> {
     }
 
     if self.npm_resolver.in_npm_package(specifier) {
-      if let Ok(pkg_id) = self
+      if let Ok(Some(pkg_id)) = self
         .npm_resolver
         .resolve_package_id_from_specifier(specifier)
       {
@@ -254,7 +254,8 @@ impl<'a> TsResponseImportMapper<'a> {
     let root_folder = self
       .npm_resolver
       .resolve_package_folder_from_specifier(specifier)
-      .ok()?;
+      .ok()
+      .flatten()?;
     let package_json_path = root_folder.join("package.json");
     let package_json_text = std::fs::read_to_string(&package_json_path).ok()?;
     let package_json =

cli/npm/cache.rs

@@ -196,19 +196,6 @@ impl NpmCacheDir {
     &self,
     specifier: &ModuleSpecifier,
     registry_url: &Url,
-  ) -> Result<NpmPackageCacheFolderId, AnyError> {
-    match self
-      .maybe_resolve_package_folder_id_from_specifier(specifier, registry_url)
-    {
-      Some(id) => Ok(id),
-      None => bail!("could not find npm package for '{}'", specifier),
-    }
-  }
-
-  fn maybe_resolve_package_folder_id_from_specifier(
-    &self,
-    specifier: &ModuleSpecifier,
-    registry_url: &Url,
   ) -> Option<NpmPackageCacheFolderId> {
     let registry_root_dir = self
       .root_dir_url
@@ -455,7 +442,7 @@ impl NpmCache {
     &self,
     specifier: &ModuleSpecifier,
     registry_url: &Url,
-  ) -> Result<NpmPackageCacheFolderId, AnyError> {
+  ) -> Option<NpmPackageCacheFolderId> {
     self
       .cache_dir
       .resolve_package_folder_id_from_specifier(specifier, registry_url)

cli/npm/resolvers/common.rs

@@ -46,12 +46,12 @@ pub trait NpmPackageFsResolver: Send + Sync {
   fn resolve_package_folder_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError>;
+  ) -> Result<Option<PathBuf>, AnyError>;
 
   fn resolve_package_cache_folder_id_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<NpmPackageCacheFolderId, AnyError>;
+  ) -> Result<Option<NpmPackageCacheFolderId>, AnyError>;
 
   async fn cache_packages(&self) -> Result<(), AnyError>;
 

cli/npm/resolvers/global.rs

@@ -8,6 +8,7 @@ use std::sync::Arc;
 
 use async_trait::async_trait;
 use deno_ast::ModuleSpecifier;
+use deno_core::anyhow::bail;
 use deno_core::error::AnyError;
 use deno_core::url::Url;
 use deno_npm::resolution::PackageNotFoundFromReferrerError;
@@ -97,9 +98,11 @@ impl NpmPackageFsResolver for GlobalNpmPackageResolver {
     referrer: &ModuleSpecifier,
     mode: NodeResolutionMode,
   ) -> Result<PathBuf, AnyError> {
-    let referrer_pkg_id = self
+    let Some(referrer_pkg_id) = self
       .cache
-      .resolve_package_folder_id_from_specifier(referrer, &self.registry_url)?;
+      .resolve_package_folder_id_from_specifier(referrer, &self.registry_url) else {
+        bail!("could not find npm package for '{}'", referrer);
+      };
     let pkg = if mode.is_types() && !name.starts_with("@types/") {
       // attempt to resolve the types package first, then fallback to the regular package
       match self.resolve_types_package(name, &referrer_pkg_id) {
@@ -119,25 +122,30 @@ impl NpmPackageFsResolver for GlobalNpmPackageResolver {
   fn resolve_package_folder_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
-    let pkg_folder_id = self.cache.resolve_package_folder_id_from_specifier(
+    let Some(pkg_folder_id) = self.cache.resolve_package_folder_id_from_specifier(
       specifier,
       &self.registry_url,
-    )?;
+    ) else {
-    Ok(
+      return Ok(None);
+    };
+    Ok(Some(
       self
         .cache
         .package_folder_for_id(&pkg_folder_id, &self.registry_url),
-    )
+    ))
   }
 
   fn resolve_package_cache_folder_id_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<NpmPackageCacheFolderId, AnyError> {
+  ) -> Result<Option<NpmPackageCacheFolderId>, AnyError> {
-    self
+    Ok(
-      .cache
+      self.cache.resolve_package_folder_id_from_specifier(
-      .resolve_package_folder_id_from_specifier(specifier, &self.registry_url)
+        specifier,
+        &self.registry_url,
+      ),
+    )
   }
 
   async fn cache_packages(&self) -> Result<(), AnyError> {

cli/npm/resolvers/local.rs

@@ -109,31 +109,27 @@ impl LocalNpmPackageResolver {
   fn resolve_folder_for_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
-    match self.maybe_resolve_folder_for_specifier(specifier) {
+    let Some(relative_url) = self.root_node_modules_url.make_relative(specifier) else {
-      // Canonicalize the path so it's not pointing to the symlinked directory
+      return Ok(None);
-      // in `node_modules` directory of the referrer.
+    };
-      Some(path) => canonicalize_path_maybe_not_exists_with_fs(&path, |path| {
-        self
-          .fs
-          .realpath_sync(path)
-          .map_err(|err| err.into_io_error())
-      })
-      .map_err(|err| err.into()),
-      None => bail!("could not find npm package for '{}'", specifier),
-    }
-  }
-
-  fn maybe_resolve_folder_for_specifier(
-    &self,
-    specifier: &ModuleSpecifier,
-  ) -> Option<PathBuf> {
-    let relative_url = self.root_node_modules_url.make_relative(specifier)?;
     if relative_url.starts_with("../") {
-      return None;
+      return Ok(None);
     }
     // it's within the directory, so use it
-    specifier.to_file_path().ok()
+    let Some(path) = specifier.to_file_path().ok() else {
+      return Ok(None);
+    };
+    // Canonicalize the path so it's not pointing to the symlinked directory
+    // in `node_modules` directory of the referrer.
+    canonicalize_path_maybe_not_exists_with_fs(&path, |path| {
+      self
+        .fs
+        .realpath_sync(path)
+        .map_err(|err| err.into_io_error())
+    })
+    .map(Some)
+    .map_err(|err| err.into())
   }
 }
 
@@ -172,7 +168,9 @@ impl NpmPackageFsResolver for LocalNpmPackageResolver {
     referrer: &ModuleSpecifier,
     mode: NodeResolutionMode,
   ) -> Result<PathBuf, AnyError> {
-    let local_path = self.resolve_folder_for_specifier(referrer)?;
+    let Some(local_path) = self.resolve_folder_for_specifier(referrer)? else {
+      bail!("could not find npm package for '{}'", referrer);
+    };
     let package_root_path = self.resolve_package_root(&local_path);
     let mut current_folder = package_root_path.as_path();
     loop {
@@ -220,22 +218,23 @@ impl NpmPackageFsResolver for LocalNpmPackageResolver {
   fn resolve_package_folder_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
-    let local_path = self.resolve_folder_for_specifier(specifier)?;
+    let Some(local_path) = self.resolve_folder_for_specifier(specifier)? else {
+      return Ok(None);
+    };
     let package_root_path = self.resolve_package_root(&local_path);
-    Ok(package_root_path)
+    Ok(Some(package_root_path))
   }
 
   fn resolve_package_cache_folder_id_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<NpmPackageCacheFolderId, AnyError> {
+  ) -> Result<Option<NpmPackageCacheFolderId>, AnyError> {
-    let folder_path = self.resolve_package_folder_from_specifier(specifier)?;
+    let Some(folder_path) = self.resolve_package_folder_from_specifier(specifier)? else {
+      return Ok(None);
+    };
     let folder_name = folder_path.parent().unwrap().to_string_lossy();
-    match get_package_folder_id_from_folder_name(&folder_name) {
+    Ok(get_package_folder_id_from_folder_name(&folder_name))
-      Some(package_folder_id) => Ok(package_folder_id),
-      None => bail!("could not resolve package from specifier '{}'", specifier),
-    }
   }
 
   async fn cache_packages(&self) -> Result<(), AnyError> {

cli/npm/resolvers/mod.rs

@@ -131,31 +131,35 @@ impl CliNpmResolver {
   pub fn resolve_package_folder_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
-    let path = self
+    let Some(path) = self
       .fs_resolver
-      .resolve_package_folder_from_specifier(specifier)?;
+      .resolve_package_folder_from_specifier(specifier)? else {
+        return Ok(None);
+      };
     log::debug!(
       "Resolved package folder of {} to {}",
       specifier,
       path.display()
     );
-    Ok(path)
+    Ok(Some(path))
   }
 
   /// Resolves the package nv from the provided specifier.
   pub fn resolve_package_id_from_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Result<NpmPackageId, AnyError> {
+  ) -> Result<Option<NpmPackageId>, AnyError> {
-    let cache_folder_id = self
+    let Some(cache_folder_id) = self
       .fs_resolver
-      .resolve_package_cache_folder_id_from_specifier(specifier)?;
+      .resolve_package_cache_folder_id_from_specifier(specifier)? else {
-    Ok(
+return Ok(None);
+      };
+    Ok(Some(
       self
         .resolution
         .resolve_pkg_id_from_pkg_cache_folder_id(&cache_folder_id)?,
-    )
+    ))
   }
 
   /// Attempts to get the package size in bytes.
@@ -268,7 +272,7 @@ impl NpmResolver for CliNpmResolver {
   fn resolve_package_folder_from_path(
     &self,
     path: &Path,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
     let specifier = path_to_specifier(path)?;
     self.resolve_package_folder_from_specifier(&specifier)
   }
@@ -291,7 +295,8 @@ impl NpmResolver for CliNpmResolver {
   fn in_npm_package(&self, specifier: &ModuleSpecifier) -> bool {
     self
       .resolve_package_folder_from_specifier(specifier)
-      .is_ok()
+      .map(|p| p.is_some())
+      .unwrap_or(false)
   }
 
   fn ensure_read_permission(

cli/tests/integration/npm_tests.rs

@@ -88,6 +88,22 @@ itest!(cjs_invalid_name_exports {
   http_server: true,
 });
 
+itest!(cjs_require_esm_error {
+  args: "run --allow-read --quiet npm/cjs_require_esm_error/main.ts",
+  output: "npm/cjs_require_esm_error/main.out",
+  envs: env_vars_for_npm_tests(),
+  http_server: true,
+  exit_code: 1,
+});
+
+itest!(cjs_require_esm_mjs_error {
+  args: "run --allow-read --quiet npm/cjs_require_esm_mjs_error/main.ts",
+  output: "npm/cjs_require_esm_mjs_error/main.out",
+  envs: env_vars_for_npm_tests(),
+  http_server: true,
+  exit_code: 1,
+});
+
 itest!(translate_cjs_to_esm {
   args: "run -A --quiet npm/translate_cjs_to_esm/main.js",
   output: "npm/translate_cjs_to_esm/main.out",

cli/tests/testdata/npm/cjs_require_esm_error/main.out

@@ -0,0 +1,4 @@
+error: Uncaught Error: [ERR_REQUIRE_ESM]: require() of ES Module [WILDCARD]my_esm_module.js from [WILDCARD]index.js not supported. Instead change the require to a dynamic import() which is available in all CommonJS modules.
+    at Object.Module._extensions..js (node:module:[WILDCARD])
+    [WILDCARD]
+    at Module.load (node:module:[WILDCARD])

cli/tests/testdata/npm/cjs_require_esm_error/main.ts

@@ -0,0 +1 @@
+import "npm:@denotest/cjs-require-esm-error";

cli/tests/testdata/npm/cjs_require_esm_mjs_error/main.out

@@ -0,0 +1,4 @@
+error: Uncaught Error: [ERR_REQUIRE_ESM]: require() of ES Module [WILDCARD]esm_mjs.mjs from [WILDCARD]require_mjs.js not supported. Instead change the require to a dynamic import() which is available in all CommonJS modules.
+    at Module.load (node:module:[WILDCARD])
+    [WILDCARD]
+    at Function.Module._load (node:module:[WILDCARD])

cli/tests/testdata/npm/cjs_require_esm_mjs_error/main.ts

@@ -0,0 +1 @@
+import "npm:@denotest/cjs-require-esm-error/require_mjs.js";

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/esm/my_esm_module.js

@@ -0,0 +1 @@
+export class Test {}

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/esm/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/esm_mjs.mjs

@@ -0,0 +1 @@
+export class Test {}

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/index.js

@@ -0,0 +1 @@
+module.exports.Test = require("./esm/my_esm_module.js");

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "@denotest/cjs-require-esm-error",
+  "version": "1.0.0"
+}

cli/tests/testdata/npm/registry/@denotest/cjs-require-esm-error/1.0.0/require_mjs.js

@@ -0,0 +1 @@
+module.exports.Test = require("./esm_mjs.mjs");

ext/node/lib.rs

@@ -81,7 +81,7 @@ pub trait NpmResolver: std::fmt::Debug + MaybeSend + MaybeSync {
   fn resolve_package_folder_from_path(
     &self,
     path: &Path,
-  ) -> Result<PathBuf, AnyError>;
+  ) -> Result<Option<PathBuf>, AnyError>;
 
   /// Resolves an npm package folder path from a Deno module.
   fn resolve_package_folder_from_deno_module(

ext/node/ops/require.rs

@@ -371,7 +371,8 @@ where
       &Url::from_file_path(parent_path.unwrap()).unwrap(),
       permissions,
     )
-    .ok();
+    .ok()
+    .flatten();
   if pkg.is_none() {
     return Ok(None);
   }
@@ -499,7 +500,7 @@ where
 fn op_require_read_closest_package_json<P>(
   state: &mut OpState,
   filename: String,
-) -> Result<PackageJson, AnyError>
+) -> Result<Option<PackageJson>, AnyError>
 where
   P: NodePermissions + 'static,
 {

ext/node/polyfills/01_require.js

@@ -879,7 +879,9 @@ Module.prototype.load = function (filename) {
     StringPrototypeEndsWith(filename, ".mjs") && !Module._extensions[".mjs"]
   ) {
     // TODO: use proper error class
-    throw new Error("require ESM", filename);
+    throw new Error(
+      requireEsmErrorText(filename, moduleParentCache.get(this)?.filename),
+    );
   }
 
   Module._extensions[extension](this, filename);
@@ -990,23 +992,29 @@ Module._extensions[".js"] = function (module, filename) {
   const content = ops.op_require_read_file(filename);
 
   if (StringPrototypeEndsWith(filename, ".js")) {
-    const pkg = ops.op_require_read_package_scope(filename);
+    const pkg = ops.op_require_read_closest_package_json(filename);
-    if (pkg && pkg.exists && pkg.typ == "module") {
+    if (pkg && pkg.exists && pkg.typ === "module") {
-      let message = `Trying to import ESM module: ${filename}`;
+      throw new Error(
-
+        requireEsmErrorText(filename, moduleParentCache.get(module)?.filename),
-      if (module.parent) {
+      );
-        message += ` from ${module.parent.filename}`;
-      }
-
-      message += ` using require()`;
-
-      throw new Error(message);
     }
   }
 
   module._compile(content, filename);
 };
 
+function requireEsmErrorText(filename, parent) {
+  let message = `[ERR_REQUIRE_ESM]: require() of ES Module ${filename}`;
+
+  if (parent) {
+    message += ` from ${parent}`;
+  }
+
+  message +=
+    ` not supported. Instead change the require to a dynamic import() which is available in all CommonJS modules.`;
+  return message;
+}
+
 function stripBOM(content) {
   if (StringPrototypeCharCodeAt(content, 0) === 0xfeff) {
     content = StringPrototypeSlice(content, 1);

ext/node/resolution.rs

@@ -426,12 +426,12 @@ impl NodeResolver {
     if url_str.starts_with("http") {
       Ok(NodeResolution::Esm(url))
     } else if url_str.ends_with(".js") || url_str.ends_with(".d.ts") {
-      let package_config =
+      let maybe_package_config =
         self.get_closest_package_json(&url, &AllowAllNodePermissions)?;
-      if package_config.typ == "module" {
+      match maybe_package_config {
-        Ok(NodeResolution::Esm(url))
+        Some(c) if c.typ == "module" => Ok(NodeResolution::Esm(url)),
-      } else {
+        Some(_) => Ok(NodeResolution::CommonJs(url)),
-        Ok(NodeResolution::CommonJs(url))
+        None => Ok(NodeResolution::Esm(url)),
       }
     } else if url_str.ends_with(".mjs") || url_str.ends_with(".d.mts") {
       Ok(NodeResolution::Esm(url))
@@ -555,63 +555,22 @@ impl NodeResolver {
       ));
     }
 
-    let package_config =
-      self.get_package_scope_config(referrer, permissions)?;
     let mut package_json_path = None;
-    if package_config.exists {
+    if let Some(package_config) =
-      package_json_path = Some(package_config.path.clone());
+      self.get_package_scope_config(referrer, permissions)?
-      if let Some(imports) = &package_config.imports {
+    {
-        if imports.contains_key(name) && !name.contains('*') {
+      if package_config.exists {
-          let maybe_resolved = self.resolve_package_target(
+        package_json_path = Some(package_config.path.clone());
-            package_json_path.as_ref().unwrap(),
+        if let Some(imports) = &package_config.imports {
-            imports.get(name).unwrap().to_owned(),
+          if imports.contains_key(name) && !name.contains('*') {
-            "".to_string(),
-            name.to_string(),
-            referrer,
-            referrer_kind,
-            false,
-            true,
-            conditions,
-            mode,
-            permissions,
-          )?;
-          if let Some(resolved) = maybe_resolved {
-            return Ok(resolved);
-          }
-        } else {
-          let mut best_match = "";
-          let mut best_match_subpath = None;
-          for key in imports.keys() {
-            let pattern_index = key.find('*');
-            if let Some(pattern_index) = pattern_index {
-              let key_sub = &key[0..=pattern_index];
-              if name.starts_with(key_sub) {
-                let pattern_trailer = &key[pattern_index + 1..];
-                if name.len() > key.len()
-                  && name.ends_with(&pattern_trailer)
-                  && pattern_key_compare(best_match, key) == 1
-                  && key.rfind('*') == Some(pattern_index)
-                {
-                  best_match = key;
-                  best_match_subpath = Some(
-                    name[pattern_index..=(name.len() - pattern_trailer.len())]
-                      .to_string(),
-                  );
-                }
-              }
-            }
-          }
-
-          if !best_match.is_empty() {
-            let target = imports.get(best_match).unwrap().to_owned();
             let maybe_resolved = self.resolve_package_target(
               package_json_path.as_ref().unwrap(),
-              target,
+              imports.get(name).unwrap().to_owned(),
-              best_match_subpath.unwrap(),
+              "".to_string(),
-              best_match.to_string(),
+              name.to_string(),
               referrer,
               referrer_kind,
-              true,
+              false,
               true,
               conditions,
               mode,
@@ -620,6 +579,50 @@ impl NodeResolver {
             if let Some(resolved) = maybe_resolved {
               return Ok(resolved);
             }
+          } else {
+            let mut best_match = "";
+            let mut best_match_subpath = None;
+            for key in imports.keys() {
+              let pattern_index = key.find('*');
+              if let Some(pattern_index) = pattern_index {
+                let key_sub = &key[0..=pattern_index];
+                if name.starts_with(key_sub) {
+                  let pattern_trailer = &key[pattern_index + 1..];
+                  if name.len() > key.len()
+                    && name.ends_with(&pattern_trailer)
+                    && pattern_key_compare(best_match, key) == 1
+                    && key.rfind('*') == Some(pattern_index)
+                  {
+                    best_match = key;
+                    best_match_subpath = Some(
+                      name
+                        [pattern_index..=(name.len() - pattern_trailer.len())]
+                        .to_string(),
+                    );
+                  }
+                }
+              }
+            }
+
+            if !best_match.is_empty() {
+              let target = imports.get(best_match).unwrap().to_owned();
+              let maybe_resolved = self.resolve_package_target(
+                package_json_path.as_ref().unwrap(),
+                target,
+                best_match_subpath.unwrap(),
+                best_match.to_string(),
+                referrer,
+                referrer_kind,
+                true,
+                true,
+                conditions,
+                mode,
+                permissions,
+              )?;
+              if let Some(resolved) = maybe_resolved {
+                return Ok(resolved);
+              }
+            }
           }
         }
       }
@@ -988,8 +991,10 @@ impl NodeResolver {
       parse_package_name(specifier, referrer)?;
 
     // ResolveSelf
-    let package_config =
+    let Some(package_config) =
-      self.get_package_scope_config(referrer, permissions)?;
+      self.get_package_scope_config(referrer, permissions)? else {
+        return Ok(None);
+      };
     if package_config.exists
       && package_config.name.as_ref() == Some(&package_name)
     {
@@ -1063,27 +1068,35 @@ impl NodeResolver {
     &self,
     referrer: &ModuleSpecifier,
     permissions: &dyn NodePermissions,
-  ) -> Result<PackageJson, AnyError> {
+  ) -> Result<Option<PackageJson>, AnyError> {
-    let root_folder = self
+    let Some(root_folder) = self
       .npm_resolver
-      .resolve_package_folder_from_path(&referrer.to_file_path().unwrap())?;
+      .resolve_package_folder_from_path(&referrer.to_file_path().unwrap())? else {
+        return Ok(None);
+      };
     let package_json_path = root_folder.join("package.json");
-    self.load_package_json(permissions, package_json_path)
+    self
+      .load_package_json(permissions, package_json_path)
+      .map(Some)
   }
 
   pub(super) fn get_closest_package_json(
     &self,
     url: &ModuleSpecifier,
     permissions: &dyn NodePermissions,
-  ) -> Result<PackageJson, AnyError> {
+  ) -> Result<Option<PackageJson>, AnyError> {
-    let package_json_path = self.get_closest_package_json_path(url)?;
+    let Some(package_json_path) = self.get_closest_package_json_path(url)? else {
-    self.load_package_json(permissions, package_json_path)
+      return Ok(None);
+    };
+    self
+      .load_package_json(permissions, package_json_path)
+      .map(Some)
   }
 
   fn get_closest_package_json_path(
     &self,
     url: &ModuleSpecifier,
-  ) -> Result<PathBuf, AnyError> {
+  ) -> Result<Option<PathBuf>, AnyError> {
     let file_path = url.to_file_path().unwrap();
     let current_dir = deno_core::strip_unc_prefix(
       self.fs.realpath_sync(file_path.parent().unwrap())?,
@@ -1091,20 +1104,22 @@ impl NodeResolver {
     let mut current_dir = current_dir.as_path();
     let package_json_path = current_dir.join("package.json");
     if self.fs.exists(&package_json_path) {
-      return Ok(package_json_path);
+      return Ok(Some(package_json_path));
     }
-    let root_pkg_folder = self
+    let Some(root_pkg_folder) = self
       .npm_resolver
-      .resolve_package_folder_from_path(current_dir)?;
+      .resolve_package_folder_from_path(current_dir)? else {
+        return Ok(None);
+      };
     while current_dir.starts_with(&root_pkg_folder) {
       current_dir = current_dir.parent().unwrap();
       let package_json_path = current_dir.join("package.json");
       if self.fs.exists(&package_json_path) {
-        return Ok(package_json_path);
+        return Ok(Some(package_json_path));
       }
     }
 
-    bail!("did not find package.json in {}", root_pkg_folder.display())
+    Ok(None)
   }
 
   pub(super) fn load_package_json(