Error message when starknet-class-hash command do not work as expected

src/starknetCli.ts

@@ -55,7 +55,6 @@ export function compileCairo(
         .join(' ')}`,
       { stdio: 'inherit' },
     );
-
     return { success: true, resultPath, abiPath, solAbiPath, classHash: undefined };
   } catch (e) {
     if (e instanceof Error) {

src/utils/setupVenv.ts

@@ -9,7 +9,7 @@ export function runVenvSetup(options: IInstallOptions) {
     execSync(`${warpVenv} ${options.python}`, { stdio: options.verbose ? 'inherit' : 'pipe' });
   } catch {
     logError(
-      'Try using --python option for warp install and specify the path to python3.7 e.g "warp install --python /usr/bin/python3.7"',
+      'Try using --python option for warp install and specify the path to python3.9 e.g "warp install --python /usr/bin/python3.9"',
     );
   }
 }

src/utils/utils.ts

@@ -551,7 +551,17 @@ export function getSourceFromLocations(
 export function runStarkNetClassHash(filePath: string): string {
   const warpVenvPrefix = `PATH=${path.resolve(__dirname, '..', '..', 'warp_venv', 'bin')}:$PATH`;
 
-  const classHash = execSync(`${warpVenvPrefix} starknet-class-hash ${filePath}`).toString().trim();
+  let classHash: string;
+  try {
+    classHash = execSync(`${warpVenvPrefix} starknet-class-hash ${filePath}`).toString().trim();
+  } catch (error) {
+    throw new TranspileFailedError(
+      `starknet-class-hash command do not work as expected.
+      Please make sure you are using the required version of starknet by executing 'warp install' command.
+      Execute 'warp install --help' to know more about it.`,
+    );
+  }
+
   if (classHash === undefined) {
     throw new Error(`starknet-class-hash failed`);
   }