warn if metadata not found

libs/remixd/src/services/foundryClient.ts

@@ -120,7 +120,14 @@ export class FoundryClient extends PluginClient {
     
     // extract source and version
     const metadata = contentJSON.metadata
+    if (metadata.compiler && metadata.compiler.version) {
       compilationResultPart.solcVersion = metadata.compiler.version
+    } else {
+      compilationResultPart.solcVersion = ''
+      console.log('\x1b[32m%s\x1b[0m', 'compiler version not found, please update Foundry to the latest version.')
+    }
+
+    if (metadata.sources) {
       for (const path in metadata.sources) {
         const absPath = utils.absolutePath(path, this.currentSharedFolder)
         try {
@@ -130,6 +137,9 @@ export class FoundryClient extends PluginClient {
           compilationResultPart.input[path] = { content: '' }
         }
       }
+    } else {
+      console.log('\x1b[32m%s\x1b[0m', 'sources input not found, please update Foundry to the latest version.')
+    }
 
     
     compilationResultPart.compilationTarget = contentJSON.ast.absolutePath