diff --git a/workflow/composer-v2/echo-library/src/common/composer.rs b/workflow/composer-v2/echo-library/src/common/composer.rs
index def8e718..e7f7c66a 100644
--- a/workflow/composer-v2/echo-library/src/common/composer.rs
+++ b/workflow/composer-v2/echo-library/src/common/composer.rs
@@ -256,7 +256,7 @@ impl Composer {
 
             let wasm_path = format!(
                 "{}/boilerplate/target/wasm32-wasi/release/boilerplate.wasm",
-                temp_dir.display().to_string()
+                temp_dir.display()
             );
 
             fs::create_dir_all(out_path.join("output"))?;
diff --git a/workflow/composer-v2/echo-library/src/common/parse_module.rs b/workflow/composer-v2/echo-library/src/common/parse_module.rs
index 924ac767..f23cd57a 100644
--- a/workflow/composer-v2/echo-library/src/common/parse_module.rs
+++ b/workflow/composer-v2/echo-library/src/common/parse_module.rs
@@ -356,11 +356,11 @@ fn get_impl_execute_trait_code(workflow: &Workflow) -> String {
 fn get_add_nodes_code(flow: &Vec<String>) -> String {
     let mut add_nodes_code = String::new();
 
-    for i in 0..flow.len() {
+    for i in flow {
         add_nodes_code.push_str(&format!(
             "let {}_index = workflow.add_node(Box::new({}));\n",
-            flow[i].to_case(Case::Snake),
-            flow[i].to_case(Case::Snake)
+            i.to_case(Case::Snake),
+            i.to_case(Case::Snake)
         ));
     }
 
@@ -574,11 +574,11 @@ pub fn add_polkadot_openwhisk(workflow: &Workflow) -> String {
     let mut toml_dependencies = String::new();
 
     if kinds.contains("openwhisk") {
-        toml_dependencies = format!("{}", get_openwhisk());
+        toml_dependencies =  get_openwhisk();
     }
 
     if kinds.contains("polkadot") {
-        toml_dependencies = format!("{}", get_polkadot());
+        toml_dependencies = get_polkadot();
     }
 
     if kinds.contains("openwhisk") && kinds.contains("polkadot") {
@@ -616,7 +616,7 @@ pub fn get_struct_stake_ledger(workflow: &Workflow) -> String {
     let mut toml_dependencies = String::new();
 
     if kinds.contains("polkadot") {
-        toml_dependencies = format!("{}", staking_ledger());
+        toml_dependencies = staking_ledger();
     }
 
     toml_dependencies
diff --git a/workflow/composer-v2/src/commands/create.rs b/workflow/composer-v2/src/commands/create.rs
index c9980881..e00ba2ff 100644
--- a/workflow/composer-v2/src/commands/create.rs
+++ b/workflow/composer-v2/src/commands/create.rs
@@ -12,9 +12,9 @@ pub struct Create {
 
 impl Create {
     pub fn execute(self) -> result::Result<()> {
-        let current = std::env::current_dir().map_err(|error| io_error(error))?;
+        let current = std::env::current_dir().map_err(io_error)?;
         let package = current.join(&self.package_name);
-        fs::create_dir_all(&package).map_err(|error| io_error(error))?;
+        fs::create_dir_all(&package).map_err(io_error)?;
 
         let temp_path = package.join("main.echo");
         let content = format!(
@@ -39,6 +39,6 @@ workflows(
             self.package_name
         );
 
-        fs::write(&temp_path, content.as_bytes()).map_err(|error| io_error(error))
+        fs::write(&temp_path, content.as_bytes()).map_err(io_error)
     }
 }
diff --git a/workflow/composer-v2/src/errors/io.rs b/workflow/composer-v2/src/errors/io.rs
index 19663f65..f9f7965c 100644
--- a/workflow/composer-v2/src/errors/io.rs
+++ b/workflow/composer-v2/src/errors/io.rs
@@ -55,6 +55,10 @@ impl From<std::io::Error> for IOError {
 
 impl Display for IOError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", self)
+        match self {
+            IOError::PathNotFound => write!(f, "PathNotFound"),
+            IOError::Anyhow(error) => write!(f, "ErrorInComposer: {}", error),
+            IOError::Other(error) => write!(f, "Error: {}", error),
+        }
     }
 }
diff --git a/workflow/composer-v2/src/types/context.rs b/workflow/composer-v2/src/types/context.rs
index e8f6c9a2..fc7df0d9 100644
--- a/workflow/composer-v2/src/types/context.rs
+++ b/workflow/composer-v2/src/types/context.rs
@@ -20,7 +20,7 @@ impl Default for Context {
             build_directory: None,
             output_directory: None,
             source_files: None,
-            parser: Box::new(Composer::default()),
+            parser: Box::<Composer>::default(),
             quiet: false,
         }
     }
diff --git a/workflow/composer-v2/src/types/echo.rs b/workflow/composer-v2/src/types/echo.rs
index 792bc6f2..4618178a 100644
--- a/workflow/composer-v2/src/types/echo.rs
+++ b/workflow/composer-v2/src/types/echo.rs
@@ -21,7 +21,7 @@ impl Parser for Composer {
         output_directory: &OutputDirectory,
         quiet: bool,
     ) -> result::Result<()> {
-        self.build_directory(&build_directory.path, &output_directory.base(), quiet)
+        self.build_directory(&build_directory.path, output_directory.base(), quiet)
             .map_err(|error| Box::new(IOError::Anyhow(error)) as Box<dyn Exception>)?;
         Ok(())
     }