ValueError is often used if a (user-provided) value is incorrect

mpsd-software-environment.py

@@ -254,7 +254,7 @@ def install_environment(
                     cache when installing toolchains. Defaults to False.
 
     Raises:
-        Exception: If a requested toolchain is not available in the specified release.
+        ValueError: If a requested toolchain is not available in the specified release.
 
     Returns:
         None
@@ -292,7 +292,7 @@ def install_environment(
 
     for toolchain in toolchains:
         if toolchain not in available_toolchains:
-            raise Exception(
+            raise ValueError(
                 f"Toolchain '{toolchain}' is not available in release {mpsd_release}."
             )