diff --git a/app/Commands/Repl.hs b/app/Commands/Repl.hs
index d333203ae6..af8ce4bbdc 100644
--- a/app/Commands/Repl.hs
+++ b/app/Commands/Repl.hs
@@ -147,7 +147,7 @@ loadDefaultPrelude = whenJustM defaultPreludeEntryPoint $ \e -> do
     . runM
     . evalInternet hasInternet
     . runFilesIO
-    . runError @Text
+    . runError @JuvixError
     . runReader e
     . runLogIO
     . runProcessIO
diff --git a/src/Juvix/Compiler/Concrete/Translation/FromParsed/Analysis/PathResolver.hs b/src/Juvix/Compiler/Concrete/Translation/FromParsed/Analysis/PathResolver.hs
index 7c1d452053..fd4dcee95a 100644
--- a/src/Juvix/Compiler/Concrete/Translation/FromParsed/Analysis/PathResolver.hs
+++ b/src/Juvix/Compiler/Concrete/Translation/FromParsed/Analysis/PathResolver.hs
@@ -30,7 +30,7 @@ import Juvix.Prelude
 
 mkPackage ::
   forall r.
-  (Members '[Files, Error Text, Reader ResolverEnv, GitClone] r) =>
+  (Members '[Files, Error JuvixError, Reader ResolverEnv, GitClone] r) =>
   Maybe EntryPoint ->
   Path Abs Dir ->
   Sem r Package
@@ -43,7 +43,7 @@ mkPackage mpackageEntry _packageRoot = do
 
 mkPackageInfo ::
   forall r.
-  (Members '[Files, Error Text, Reader ResolverEnv, Error DependencyError, GitClone] r) =>
+  (Members '[Files, Error JuvixError, Reader ResolverEnv, Error DependencyError, GitClone] r) =>
   Maybe EntryPoint ->
   Path Abs Dir ->
   Package ->
@@ -162,7 +162,7 @@ resolveDependency i = case i ^. packageDepdendencyInfoDependency of
 
 registerDependencies' ::
   forall r.
-  (Members '[Reader EntryPoint, State ResolverState, Reader ResolverEnv, Files, Error Text, Error DependencyError, GitClone] r) =>
+  (Members '[Reader EntryPoint, State ResolverState, Reader ResolverEnv, Files, Error JuvixError, Error DependencyError, GitClone] r) =>
   DependenciesConfig ->
   Sem r ()
 registerDependencies' conf = do
@@ -186,7 +186,7 @@ registerDependencies' conf = do
 
 addRootDependency ::
   forall r.
-  (Members '[State ResolverState, Reader ResolverEnv, Files, Error Text, Error DependencyError, GitClone] r) =>
+  (Members '[State ResolverState, Reader ResolverEnv, Files, Error JuvixError, Error DependencyError, GitClone] r) =>
   DependenciesConfig ->
   EntryPoint ->
   Path Abs Dir ->
@@ -207,7 +207,7 @@ addRootDependency conf e root = do
 
 addDependency ::
   forall r.
-  (Members '[State ResolverState, Reader ResolverEnv, Files, Error Text, Error DependencyError, GitClone] r) =>
+  (Members '[State ResolverState, Reader ResolverEnv, Files, Error JuvixError, Error DependencyError, GitClone] r) =>
   Maybe EntryPoint ->
   PackageDependencyInfo ->
   Sem r LockfileDependency
@@ -224,7 +224,7 @@ addDependency me d = do
 
 addDependency' ::
   forall r.
-  (Members '[State ResolverState, Reader ResolverEnv, Files, Error Text, Error DependencyError, GitClone] r) =>
+  (Members '[State ResolverState, Reader ResolverEnv, Files, Error JuvixError, Error DependencyError, GitClone] r) =>
   Package ->
   Maybe EntryPoint ->
   ResolvedDependency ->
@@ -319,7 +319,7 @@ expectedPath' actualPath m = do
 
 re ::
   forall r a.
-  (Members '[Reader EntryPoint, Files, Error Text, Error DependencyError, GitClone] r) =>
+  (Members '[Reader EntryPoint, Files, Error JuvixError, Error DependencyError, GitClone] r) =>
   Sem (PathResolver ': r) a ->
   Sem (Reader ResolverEnv ': State ResolverState ': r) a
 re = reinterpret2H helper
@@ -342,13 +342,13 @@ re = reinterpret2H helper
               Right (r, _) -> r
         raise (evalPathResolver' st' root' (a' x'))
 
-evalPathResolver' :: (Members '[Reader EntryPoint, Files, Error Text, Error DependencyError, GitClone] r) => ResolverState -> Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r a
+evalPathResolver' :: (Members '[Reader EntryPoint, Files, Error JuvixError, Error DependencyError, GitClone] r) => ResolverState -> Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r a
 evalPathResolver' st root = fmap snd . runPathResolver' st root
 
-runPathResolver :: (Members '[Reader EntryPoint, Files, Error Text, Error DependencyError, GitClone] r) => Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
+runPathResolver :: (Members '[Reader EntryPoint, Files, Error JuvixError, Error DependencyError, GitClone] r) => Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
 runPathResolver = runPathResolver' iniResolverState
 
-runPathResolver' :: (Members '[Reader EntryPoint, Files, Error Text, Error DependencyError, GitClone] r) => ResolverState -> Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
+runPathResolver' :: (Members '[Reader EntryPoint, Files, Error JuvixError, Error DependencyError, GitClone] r) => ResolverState -> Path Abs Dir -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
 runPathResolver' st root x = do
   e <- ask
   let _envSingleFile :: Maybe (Path Abs File)
@@ -364,15 +364,15 @@ runPathResolver' st root x = do
           }
   runState st (runReader env (re x))
 
-runPathResolverPipe' :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone] r) => ResolverState -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
+runPathResolverPipe' :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone, Error JuvixError] r) => ResolverState -> Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
 runPathResolverPipe' iniState a = do
   r <- asks (^. entryPointResolverRoot)
-  runError (runPathResolver' iniState r (raiseUnder a)) >>= either error return
+  runPathResolver' iniState r a
 
-runPathResolverPipe :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone] r) => Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
+runPathResolverPipe :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone, Error JuvixError] r) => Sem (PathResolver ': r) a -> Sem r (ResolverState, a)
 runPathResolverPipe a = do
   r <- asks (^. entryPointResolverRoot)
-  runError (runPathResolver r (raiseUnder a)) >>= either error return
+  runPathResolver r a
 
-evalPathResolverPipe :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone] r) => Sem (PathResolver ': r) a -> Sem r a
+evalPathResolverPipe :: (Members '[Files, Reader EntryPoint, Error DependencyError, GitClone, Error JuvixError] r) => Sem (PathResolver ': r) a -> Sem r a
 evalPathResolverPipe = fmap snd . runPathResolverPipe
diff --git a/src/Juvix/Compiler/Pipeline/Artifacts/PathResolver.hs b/src/Juvix/Compiler/Pipeline/Artifacts/PathResolver.hs
index 2d0e658b9c..4e6c528925 100644
--- a/src/Juvix/Compiler/Pipeline/Artifacts/PathResolver.hs
+++ b/src/Juvix/Compiler/Pipeline/Artifacts/PathResolver.hs
@@ -6,5 +6,5 @@ import Juvix.Compiler.Pipeline.EntryPoint
 import Juvix.Data.Effect.Git
 import Juvix.Prelude
 
-runPathResolverArtifacts :: (Members '[Files, Reader EntryPoint, State Artifacts, Error DependencyError, GitClone] r) => Sem (PathResolver ': r) a -> Sem r a
+runPathResolverArtifacts :: (Members '[Files, Reader EntryPoint, State Artifacts, Error DependencyError, GitClone, Error JuvixError] r) => Sem (PathResolver ': r) a -> Sem r a
 runPathResolverArtifacts = runStateLikeArtifacts runPathResolverPipe' artifactResolver
diff --git a/src/Juvix/Compiler/Pipeline/Lockfile.hs b/src/Juvix/Compiler/Pipeline/Lockfile.hs
index bc73a48e41..a0dea58b53 100644
--- a/src/Juvix/Compiler/Pipeline/Lockfile.hs
+++ b/src/Juvix/Compiler/Pipeline/Lockfile.hs
@@ -10,6 +10,7 @@ import Data.String.Interpolate (i)
 import Data.Yaml
 import Data.Yaml.Pretty
 import Juvix.Compiler.Pipeline.Package.Dependency
+import Juvix.Compiler.Pipeline.Package.Loader.Error
 import Juvix.Extra.Paths
 import Juvix.Extra.Strings qualified as Str
 import Juvix.Extra.Version
@@ -84,21 +85,33 @@ mkPackageLockfilePath = (<//> juvixLockfile)
 
 mayReadLockfile ::
   forall r.
-  (Members '[Files, Error Text] r) =>
+  (Members '[Files, Error PackageLoaderError] r) =>
   Path Abs Dir ->
   Sem r (Maybe LockfileInfo)
 mayReadLockfile root = do
-  let lockfilePath = mkPackageLockfilePath root
   lockfileExists <- fileExists' lockfilePath
   if
       | lockfileExists -> do
           bs <- readFileBS' lockfilePath
-          either (throw . pack . prettyPrintParseException) ((return . Just) . mkLockfileInfo lockfilePath) (decodeEither' @Lockfile bs)
+          either (throwErr . pack . prettyPrintParseException) ((return . Just) . mkLockfileInfo lockfilePath) (decodeEither' @Lockfile bs)
       | otherwise -> return Nothing
   where
     mkLockfileInfo :: Path Abs File -> Lockfile -> LockfileInfo
     mkLockfileInfo _lockfileInfoPath _lockfileInfoLockfile = LockfileInfo {..}
 
+    lockfilePath :: Path Abs File
+    lockfilePath = mkPackageLockfilePath root
+
+    throwErr :: Text -> Sem r a
+    throwErr e =
+      throw
+        PackageLoaderError
+          { _packageLoaderErrorPath = lockfilePath,
+            _packageLoaderErrorCause =
+              ErrLockfileYamlParseError
+                LockfileYamlParseError {_lockfileYamlParseErrorError = e}
+          }
+
 lockfileEncodeConfig :: Config
 lockfileEncodeConfig = setConfCompare keyCompare defConfig
   where
diff --git a/src/Juvix/Compiler/Pipeline/Package.hs b/src/Juvix/Compiler/Pipeline/Package.hs
index 7ee3dc874d..63b2e62115 100644
--- a/src/Juvix/Compiler/Pipeline/Package.hs
+++ b/src/Juvix/Compiler/Pipeline/Package.hs
@@ -13,10 +13,11 @@ import Data.Versions
 import Data.Yaml
 import Juvix.Compiler.Pipeline.Lockfile
 import Juvix.Compiler.Pipeline.Package.Base
+import Juvix.Compiler.Pipeline.Package.Loader.Error
 import Juvix.Extra.Paths
 import Juvix.Prelude
 
-processPackage :: forall r. (Members '[Error Text] r) => Path Abs File -> BuildDir -> Maybe LockfileInfo -> RawPackage -> Sem r Package
+processPackage :: forall r. (Members '[Error PackageLoaderError] r) => Path Abs File -> BuildDir -> Maybe LockfileInfo -> RawPackage -> Sem r Package
 processPackage _packageFile buildDir lockfile pkg = do
   let _packageName = fromMaybe defaultPackageName (pkg ^. packageName)
       _packageDependencies = resolveDependencies
@@ -35,7 +36,14 @@ processPackage _packageFile buildDir lockfile pkg = do
       Nothing -> return defaultVersion
       Just ver -> case semver ver of
         Right v -> return v
-        Left err -> throw (pack (errorBundlePretty err))
+        Left err ->
+          throw
+            PackageLoaderError
+              { _packageLoaderErrorCause =
+                  ErrVersionParseError
+                    VersionParseError {_versionParseErrorError = (pack (errorBundlePretty err))},
+                _packageLoaderErrorPath = _packageFile
+              }
 
     checkNoDuplicateDepNames :: [Dependency] -> Sem r ()
     checkNoDuplicateDepNames deps = go HashSet.empty (deps ^.. traversed . _GitDependency . gitDependencyName)
@@ -43,15 +51,17 @@ processPackage _packageFile buildDir lockfile pkg = do
         go :: HashSet Text -> [Text] -> Sem r ()
         go _ [] = return ()
         go s (x : xs)
-          | x `HashSet.member` s = throw (errMsg x)
+          | x `HashSet.member` s =
+              throw
+                PackageLoaderError
+                  { _packageLoaderErrorPath = _packageFile,
+                    _packageLoaderErrorCause =
+                      ErrDuplicateDependencyError
+                        DuplicateDependencyError
+                          { _duplicateDependencyErrorName = x
+                          }
+                  }
           | otherwise = go (HashSet.insert x s) xs
-          where
-            errMsg :: Text -> Text
-            errMsg dupName =
-              "Juvix package file at: "
-                <> pack (toFilePath _packageFile)
-                <> " contains the duplicate dependency name: "
-                <> dupName
 
     resolveDependencies :: [Dependency]
     resolveDependencies = fromMaybe [stdlib] (pkg ^. packageDependencies)
@@ -62,36 +72,37 @@ processPackage _packageFile buildDir lockfile pkg = do
 -- | Given some directory d it tries to read the file d/juvix.yaml and parse its contents
 readPackage ::
   forall r.
-  (Members '[Files, Error Text] r) =>
+  (Members '[Files, Error JuvixError] r) =>
   Path Abs Dir ->
   BuildDir ->
   Sem r Package
-readPackage root buildDir = do
+readPackage root buildDir = mapError (JuvixError @PackageLoaderError) $ do
   bs <- readFileBS' yamlPath
   mLockfile <- mayReadLockfile root
   if
       | ByteString.null bs -> return (emptyPackage buildDir yamlPath)
-      | otherwise -> either (throw . pack . prettyPrintParseException) (processPackage yamlPath buildDir mLockfile) (decodeEither' bs)
+      | otherwise -> either (throwErr . pack . prettyPrintParseException) (processPackage yamlPath buildDir mLockfile) (decodeEither' bs)
   where
     yamlPath = mkPackageFilePath root
 
+    throwErr e =
+      throw
+        PackageLoaderError
+          { _packageLoaderErrorPath = yamlPath,
+            _packageLoaderErrorCause =
+              ErrPackageYamlParseError
+                PackageYamlParseError
+                  { _packageYamlParseErrorError = e
+                  }
+          }
+
 readPackageIO :: Path Abs Dir -> BuildDir -> IO Package
-readPackageIO root buildDir = do
-  let x :: Sem '[Error Text, Files, Embed IO] Package
-      x = readPackage root buildDir
-  m <- runM $ runFilesIO (runError x)
-  case m of
-    Left err -> putStrLn err >> exitFailure
-    Right r -> return r
+readPackageIO root buildDir = runM (runFilesIO (runErrorIO' @JuvixError (readPackage root buildDir)))
 
 readGlobalPackageIO :: IO Package
-readGlobalPackageIO = do
-  m <- runM . runFilesIO . runError $ readGlobalPackage
-  case m of
-    Left err -> putStrLn err >> exitFailure
-    Right r -> return r
+readGlobalPackageIO = runM (runFilesIO . runErrorIO' @JuvixError $ readGlobalPackage)
 
-readGlobalPackage :: (Members '[Error Text, Files] r) => Sem r Package
+readGlobalPackage :: (Members '[Error JuvixError, Files] r) => Sem r Package
 readGlobalPackage = do
   yamlPath <- globalYaml
   unlessM (fileExists' yamlPath) writeGlobalPackage
diff --git a/src/Juvix/Compiler/Pipeline/Package/Loader/Error.hs b/src/Juvix/Compiler/Pipeline/Package/Loader/Error.hs
new file mode 100644
index 0000000000..b1e65c9180
--- /dev/null
+++ b/src/Juvix/Compiler/Pipeline/Package/Loader/Error.hs
@@ -0,0 +1,85 @@
+module Juvix.Compiler.Pipeline.Package.Loader.Error where
+
+import Juvix.Data.CodeAnn
+import Juvix.Prelude
+
+data PackageLoaderError = PackageLoaderError
+  { _packageLoaderErrorPath :: Path Abs File,
+    _packageLoaderErrorCause :: PackageLoaderErrorCause
+  }
+
+data PackageLoaderErrorCause
+  = ErrPackageYamlParseError PackageYamlParseError
+  | ErrLockfileYamlParseError LockfileYamlParseError
+  | ErrVersionParseError VersionParseError
+  | ErrDuplicateDependencyError DuplicateDependencyError
+
+newtype PackageYamlParseError = PackageYamlParseError
+  { _packageYamlParseErrorError :: Text
+  }
+
+newtype LockfileYamlParseError = LockfileYamlParseError
+  { _lockfileYamlParseErrorError :: Text
+  }
+
+newtype VersionParseError = VersionParseError
+  { _versionParseErrorError :: Text
+  }
+
+newtype DuplicateDependencyError = DuplicateDependencyError
+  { _duplicateDependencyErrorName :: Text
+  }
+
+makeLenses ''PackageLoaderError
+makeLenses ''PackageYamlParseError
+makeLenses ''LockfileYamlParseError
+makeLenses ''VersionParseError
+makeLenses ''DuplicateDependencyError
+
+instance ToGenericError PackageLoaderError where
+  genericError e = do
+    let msg = mkAnsiText (ppCodeAnn e)
+    return
+      GenericError
+        { _genericErrorMessage = msg,
+          _genericErrorLoc = i,
+          _genericErrorIntervals = [i]
+        }
+    where
+      i = getLoc e
+
+instance PrettyCodeAnn PackageLoaderError where
+  ppCodeAnn e = ppCodeAnn (e ^. packageLoaderErrorCause)
+
+instance PrettyCodeAnn PackageLoaderErrorCause where
+  ppCodeAnn = \case
+    ErrPackageYamlParseError e -> ppCodeAnn e
+    ErrLockfileYamlParseError e -> ppCodeAnn e
+    ErrVersionParseError e -> ppCodeAnn e
+    ErrDuplicateDependencyError e -> ppCodeAnn e
+
+instance PrettyCodeAnn PackageYamlParseError where
+  ppCodeAnn e =
+    "The package file is invalid"
+      <> line
+      <+> pretty (e ^. packageYamlParseErrorError)
+
+instance PrettyCodeAnn LockfileYamlParseError where
+  ppCodeAnn e =
+    "The lock file is invalid"
+      <> line
+      <+> pretty (e ^. lockfileYamlParseErrorError)
+
+instance PrettyCodeAnn VersionParseError where
+  ppCodeAnn e =
+    "The package version is invalid"
+      <> line
+      <+> pretty (e ^. versionParseErrorError)
+
+instance PrettyCodeAnn DuplicateDependencyError where
+  ppCodeAnn e =
+    "Juvix package file contains the duplicate dependency name:"
+      <+> pretty (e ^. duplicateDependencyErrorName)
+
+instance HasLoc PackageLoaderError where
+  getLoc e = singletonInterval (mkInitialLoc (e ^. packageLoaderErrorPath))
diff --git a/tests/smoke/Commands/compile-dependencies.smoke.yaml b/tests/smoke/Commands/compile-dependencies.smoke.yaml
index 8c43d38472..18aff473c3 100644
--- a/tests/smoke/Commands/compile-dependencies.smoke.yaml
+++ b/tests/smoke/Commands/compile-dependencies.smoke.yaml
@@ -1056,6 +1056,8 @@ tests:
         # compile project
         juvix compile HelloWorld.juvix
     stdout:
+      contains: ""
+    stderr:
       contains: duplicate
     exit-status: 1