if (importPath.startsWith("./")) { // local import path
packageFilesLocation = VfsUtil.findRelativeFile(
importPath.replaceAll("./", ""),
importingFile.getVirtualFile());
} else {
Sdk sdk = GoSdkUtil.getGoogleGoSdkForFile(importingFile);
VirtualFile sdkSourceRoots[] = sdk.getRootProvider()
.getFiles(OrderRootType.SOURCES);
for (VirtualFile sdkSourceRoot : sdkSourceRoots) {
VirtualFile packageFile = VfsUtil.findRelativeFile(importPath,
sdkSourceRoot);