[Patch] BaseTools: Enhance error message when file is not exist for Gensec

[Yonghong Zhu <yonghong.zhu@intel.com>]

When the file is not exist in workspace or packages path, current
Gensec tool doesn't report exactly error message.

FILE FV_IMAGE = 11111111-4CF1-42D8-A0C3-B3F60779dF4D  {
  SECTION GUIDED A7717414-C616-4977-9420-844712A735BF {
    SECTION FV_IMAGE = TestPkg/Test.fd
  }
}

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
---
 BaseTools/Source/Python/GenFds/FvImageSection.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/BaseTools/Source/Python/GenFds/FvImageSection.py b/BaseTools/Source/Python/GenFds/FvImageSection.py
index 57ecea0..3a4d8fb 100644
--- a/BaseTools/Source/Python/GenFds/FvImageSection.py
+++ b/BaseTools/Source/Python/GenFds/FvImageSection.py
@@ -131,10 +131,16 @@ class FvImageSection(FvImageSectionClassObject):
                                 self.Alignment = str (FvAlignmentValue / 0x400) + "K"
                         else:
                             # FvAlignmentValue is less than 1K
                             self.Alignment = str (FvAlignmentValue)
                         FvFileObj.close()
+                    else:
+                        if len (mws.getPkgPath()) == 0:
+                            EdkLogger.error("GenFds", FILE_NOT_FOUND, "%s is not found in WORKSPACE: %s" % self.FvFileName, GenFdsGlobalVariable.WorkSpaceDir)
+                        else:
+                            EdkLogger.error("GenFds", FILE_NOT_FOUND, "%s is not found in packages path:\n\t%s" % (self.FvFileName, '\n\t'.join(mws.getPkgPath())))
+
                 else:
                     EdkLogger.error("GenFds", GENFDS_ERROR, "FvImageSection Failed! %s NOT found in FDF" % self.FvName)
 
             #
             # Prepare the parameter of GenSection
-- 
2.6.1.windows.1