Use symchk to check if symbols are available on symweb and the check fails
"C:\Program Files (x86)\Windows Kits\10\Debuggers\x64\symchk.exe" /v /s SRV*http://symweb /r \MININT-DKPV3QG\Users\xiaoyuz\Desktop\PackageAssets\PackageAssets

check this link to install symchk,