Fix panic calling compile with wrong FQBN

commands/compile/compile.go

@@ -119,12 +119,10 @@ func Compile(ctx context.Context, req *rpc.CompileRequest, outStream, errStream
 		PlatformArchitecture: fqbn.PlatformArch,
 	})
 	if targetPlatform == nil || pm.GetInstalledPlatformRelease(targetPlatform) == nil {
-		// TODO: Move this error message in `cli` module
-		// errorMessage := fmt.Sprintf(
-		// 	"\"%[1]s:%[2]s\" platform is not installed, please install it by running \""+
-		// 		version.GetAppName()+" core install %[1]s:%[2]s\".", fqbn.Package, fqbn.PlatformArch)
-		// feedback.Error(errorMessage)
-		return nil, &arduino.PlatformNotFoundError{Platform: targetPlatform.String(), Cause: fmt.Errorf(tr("platform not installed"))}
+		return nil, &arduino.PlatformNotFoundError{
+			Platform: fmt.Sprintf("%s:%s", fqbn.Package, fqbn.PlatformArch),
+			Cause:    fmt.Errorf(tr("platform not installed")),
+		}
 	}
 
 	builderCtx := &types.Context{}

test/test_compile_part_4.py

@@ -378,3 +378,22 @@ def test_compile_without_upload_and_fqbn(run_command, data_dir):
     res = run_command(["compile", sketch_path])
     assert res.failed
     assert "Error during build: Missing FQBN (Fully Qualified Board Name)" in res.stderr
+
+
+def test_compile_non_installed_platform_with_wrong_packager_and_arch(run_command, data_dir):
+    assert run_command(["update"])
+
+    # Create a sketch
+    sketch_name = "SketchSimple"
+    sketch_path = Path(data_dir, sketch_name)
+    assert run_command(["sketch", "new", sketch_path])
+
+    # Compile with wrong packager
+    res = run_command(["compile", "-b", "wrong:avr:uno", sketch_path])
+    assert res.failed
+    assert "Error during build: Platform 'wrong:avr' not found: platform not installed" in res.stderr
+
+    # Compile with wrong arch
+    res = run_command(["compile", "-b", "arduino:wrong:uno", sketch_path])
+    assert res.failed
+    assert "Error during build: Platform 'arduino:wrong' not found: platform not installed" in res.stderr