IIS Express Error: Project is not running in VS Enterprise 2017 but in community edition works fine.

Question

User333319149 posted

I have installed VS community after that VS Enterprise  2017. In <g class="gr_ gr_147 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar only-ins replaceWithoutSep" id="147" data-gr-id="147">enterprise</g> version, <g class="gr_ gr_97 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="97" data-gr-id="97">Mvc</g> core 2.1 projects <g class="gr_ gr_141 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar multiReplace" id="141" data-gr-id="141">is</g> not running showing the error

''The following error occurred when trying to configure IIS Express for <g class="gr_ gr_375 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar only-ins doubleReplace replaceWithoutSep" id="375" data-gr-id="375">project</g> <g class="gr_ gr_376 gr-alert gr_gramm gr_inline_cards gr_run_anim Punctuation multiReplace" id="376" data-gr-id="376">....</g> You do not have permission to access the IIS configuration file. Opening and creating <g class="gr_ gr_490 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del" id="490" data-gr-id="490">web sites</g> on IIS requires running Visual Studio under an Administrator account.

I have tried deleting /Document/IIS Express folder, Running as Admin, Reinstalled <g class="gr_ gr_276 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="276" data-gr-id="276">IiS</g> Express, Repair VS Enterprise.

Answer 1

User475983607 posted

Try running Visual Studio as an administrator.  

https://stackoverflow.com/questions/9654833/how-to-run-visual-studio-as-administrator-by-default/41758824

Answer 2

User-788056197 posted

Running Visual Studio as an administrator is not solving my problem. 
I try delete all bin, obj, .vs folder, start, restart computer, VS2017 ..., nothing helped.
This error sometime just not occur. I can not find pattern to reproduce it.

This start happening with VS 2017 15.9.3 

Answer 3

User-788056197 posted

Solution is:
Turn Off "Real-time protection" in Windows Defender Security Centar.

I try exclude almost everything in"Exclusion"  section of Virus & threat protection setting of Windows Defender, but solve my problem is turn Off "Real-time protection".

If anybody know what exactly need to exclude, I am glad to know it.