Print suggestion to update the component manager on manifest errors

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Print suggestion to update the component manager on manifest errors
+
 ### Fixed
 
 - Fix expansion of environment variables in manifest for `rules`

idf_component_tools/manifest/manager.py

@@ -1,4 +1,5 @@
 import os
+import sys
 from io import open
 
 import yaml
@@ -16,6 +17,12 @@
 
 EMPTY_MANIFEST = dict()  # type: Dict[str, Any]
 
+UPDATE_SUGGESTION = """
+SUGGESTION: This component may be using a newer version of the component manager.
+You can try to update the component manager by running:
+    {} -m pip install --upgrade idf-component-manager
+""".format(sys.executable)
+
 
 class ManifestManager(object):
     """Parser for manifest files in the project"""
@@ -108,11 +115,13 @@ def load(self):  # type: () -> Manifest
         if not self.is_valid:
             error_count = len(self.validation_errors)
             if error_count == 1:
-                error_desc = ['A problem was found in the manifest file %s:' % self._path] + self.validation_errors
+                error_desc = ['A problem was found in the manifest file %s:' % self._path]
             else:
-                error_desc = [
-                    '%i problems were found in the manifest file %s:' % (error_count, self._path)
-                ] + self.validation_errors
+                error_desc = ['%i problems were found in the manifest file %s:' % (error_count, self._path)]
+
+            error_desc.extend(self.validation_errors)
+
+            error_desc.append(UPDATE_SUGGESTION)
 
             raise ManifestError('\n'.join(error_desc))