diff --git a/src/Backend/Toolchain.ts b/src/Backend/Toolchain.ts
index 006f25a5..bc86200c 100644
--- a/src/Backend/Toolchain.ts
+++ b/src/Backend/Toolchain.ts
@@ -58,7 +58,7 @@ class Toolchain {
   installed(): Command {
     throw Error('Invalid installed call');
   }
-  run(cfg: string): Command {
+  run(_cfg: string): Command {
     throw Error('Invalid run call');
   }
 }
diff --git a/src/Toolchain/DefaultToolchain.ts b/src/Toolchain/DefaultToolchain.ts
index 24565812..36429885 100644
--- a/src/Toolchain/DefaultToolchain.ts
+++ b/src/Toolchain/DefaultToolchain.ts
@@ -17,7 +17,6 @@
 import * as vscode from 'vscode';
 
 import {Toolchain} from '../Backend/Toolchain';
-import {Logger} from '../Utils/Logger';
 import {ToolchainEnv} from './ToolchainEnv';
 
 class DefaultToolchain {
diff --git a/src/Toolchain/ToolchainEnv.ts b/src/Toolchain/ToolchainEnv.ts
index 4d01dd37..7d67cd71 100644
--- a/src/Toolchain/ToolchainEnv.ts
+++ b/src/Toolchain/ToolchainEnv.ts
@@ -22,8 +22,6 @@ import {Toolchain} from '../Backend/Toolchain';
 import {BuilderJob} from '../Job/BuilderJob';
 import {Job} from '../Job/Job';
 import {WorkFlow} from '../Job/WorkFlow';
-import {Balloon} from '../Utils/Balloon';
-import * as helpers from '../Utils/Helpers';
 import {Logger} from '../Utils/Logger';
 import {showPasswordQuickInput} from '../View/PasswordQuickInput';