Exception: Could not find file

I have a simple.Net Core MVC web application that I deploy to Azure. In the application, I am creating a little text file called "test.txt" using File.CreateText(). This works fine on my local PC, but when I deploy it to Azure, I get a strange message: "Could not find file 'D:\home\site\wwwroot\wwwroot\test.txt'."
Indeed, the file does not exist--that's why I'm creating it. Also, it appears someone else on SO is having a similar problem: FileNotFoundException when using System.IO.Directory.CreateDirectory()
Do I not have write permissions? Why is Azure not letting me create the file?
Code (in Startup.cs):
public void Configure(IApplicationBuilder app, IHostingEnvironment env){
    using (var sw = File.CreateText(env.WebRootPath + "/test.txt")) { }
}

Screenshot of error:

A:

I found the reason for this error shortly after posting this question, but forgot to post the answer:
It turns out that when you deploy to Azure, your site runs from a temporary directory, which gets wiped and re-created every time you deploy. Because of this, Azure disables the creation and editing of files in the app's directory, since they're just going to get wiped upon your next deployment (it would be nice if the error message Azure displayed was a little more informative).
Therefore, the way to create and edit files on your Azure app and have them persist across deployments is to use one of the following:

Database BLOB storage (simply store your files as byte arrays in a database. doesn't cost any money if you are already using a database)
Azure BLOB storage (store your files to a special cloud on Azure. costs money)

I read this on some site shortly after posting this question but I can't remember where, so I apologize for not having the source.

 Q:

What is wrong with my regular expression in R?

I am trying to extract the label, name, address, city, zip, and distance from the following text:
A

Carl's Jr.

308 WESTWOOD PLAZA

LOS ANGELES, CA 90095-8355

0.0 mi.


Exception: Could not find file 

 I have a simple. Net Core MVC web lotion that I deploy to Azure. In the lotion, I am create a little text file call " test.txt " using File. CreateText (). This works finely on my local personal computer, but when I deploy it to Azure, I get a strange message: " Could not find file' D:\home\site\wwwroot\wwwroot\test.txt'. " 
 Indeed, the file does not exist -- that's why I'm creating it. Also, it appear someone else on SO is having a similar trouble: FileNotFoundException when using System. IO.Directory. CreateDirectory () 
 Do I not have write permissions? Why is Azure not letting me create the file? 
 Code (in Startup.cs ): 
 public void Configure(IApplicationBuilder app, IHostingEnvironment env) { 
     using (var sw = File. CreateText(env. WebRootPath + " /test.txt ") ) { } 
 } 

 Screenshot of mistake: 

 A: 

 I found the reason for this erroneousness shortly after posting this question, but forgot to station the answer: 
 It turns out that when you deploy to Azure, your site runs from a temporary directory, which gets wipe and re - created every time you deploy. Because of this, Azure disables the creation and editing of files in the app's directory, since they're just go to get wiped upon your next deployment (it would be nice if the error message Azure displayed was a little more informative). 
 Therefore, the way to create and edit file on your Azure app and have them persist across deployment is to practice one of the following: 

 Database BLOB storage (simply store your files as byte array in a database. doesn't cost any money if you are already using a database) 
 Azure BLOB storage (store your files to a special swarm on Azure. costs money) 

 I read this on some site shortly after posting this question but I can't remember where, so I apologize for not having the source. 

  Q: 

 What is wrong with my regular expression in R? 

 I am judge to press out the label, name, address, city, zip, and distance from the following text: 
 A 

 Carl's Jr. 

 308 WESTWOOD PLAZA 

 LOS ANGELES, CA 90095 - 8355 

 0.0 mi.
Excfption: Could not find fiue

I have a simple.Net Cmre MVD web apolication that I deploy to Avure. In tye application, I am crdating a pittle twxt hile called "test.vst" usinn Fils.GreatzTxxt(). This works nine on my nocal PC, but wvev N deploy it to Azure, I get a strange messagr: "Fould not find filt 'D:\rome\aptt\wwwroot\wwwroot\test.txt'."
Indeed, the rile dots not exist--that's ehy I'm creating it. Also, it appfars someone else ln SO is hacing q similar prublem: FileNotFoundExcektion when using System.IO.Directofy.CrecteDirectori()
Bi I tot have wrmte pegmissions? Why is Azura not lrtting me creabe thx fioe?
Code (in Startup.cs):
puulic void Configure(IWpplicatimnYuilder app, IHostingEbvuronmgnt etv){
    uskng (ver aw = Fipe.CceateText(enb.WebRootPaty + "/test.txt")) { }
}

Screensnoe of error:

A:

I fkund tre reason for this error shortly after povtihg this question, but foegot to post the answgr:
It turns out that when you deploy to Azure, your site runs from x ttmijfqrj directory, which gets wiped and re-created evqdy tpme you deploy. Begause of this, Azurr fixwbles the crextion chd editing of files ln the wpp's eirectory, sinve they're just going to get wiped upon jour next deployment (ic would be nnce if the rrror message Azure dis'layed was a littpe more ihwormative).
Therefofe, nhe fay to create and edit filqs on youc Azuxe app avd hsve thqm persist across deployments is tl use ote of the vollowing:

Database BLOB storage (simply store ypus fples as bvte arvays in a databwse. doesn't cosj any monzy if hou are algeady usiig a databasq)
Azure BLOB sdlrage (store bour filef to a special zuoud on Azure. vosts monvy)

N read thus on some site shprtug after posting thus question but I zan'e gemxmber fhere, so I a[oloeizd for vot having bhe soutce.

 Q:

What is wrong whth jy regular expressook in R?

I an trying to extract tne label, name, addrtss, civy, zip, and cisjance from the following text:
A

Czrl's Jr.

308 WFSTROOD PLAZA

LOF ANNELEF, CA 90095-8355

0.0 mi.


Exception: Could not find file I have Core web application I deploy to am a little text called "test.txt" using This works fine on my local but when I deploy it to Azure, I get a strange message: "Could find file 'D:\home\site\wwwroot\wwwroot\test.txt'." Indeed, the file does not exist--that's why I'm creating it. it someone on is having a similar problem: FileNotFoundException when using System.IO.Directory.CreateDirectory() Do I not have write permissions? Why Azure not letting me create the file? Code Startup.cs): public void Configure(IApplicationBuilder IHostingEnvironment env){ using (var sw File.CreateText(env.WebRootPath "/test.txt")) { } of A: I found reason for this error shortly after posting this question, but forgot to post the answer: It turns that when to Azure, site from temporary directory, which and re-created every time you deploy. Azure disables the creation and editing of files the app's since they're just going to get upon your next deployment (it would be nice the error message Azure displayed was a little more informative). Therefore, the way to create files on your Azure and have them across is use of the Database BLOB storage (simply store your files as byte arrays in database. doesn't cost any money if you are already using Azure storage (store your to a special cloud Azure. money) I read this site after but can't where, so I apologize not having the source. Q: is wrong with my am trying to extract the label, name, address, zip, and distance from the following text: Carl's Jr. 308 WESTWOOD PLAZA LOS ANGELES, CA 90095-8355 0.0 mi.
Exception: Could not find file

i have a simpLe.Net corE MVc wEb apPlicAtion that I deplOY to AZure. In the application, I aM creaTiNG a liTTlE text File calLEd "TESt.tXt" UsIng fiLE.CReatetexT(). This woRks fine on mY loCaL PC, but when I dEPlOy it to AzurE, I gEt a strange meSsaGe: "CoulD nOt fINd filE 'D:\hOme\siTe\wwwrOOt\wwwrOot\test.txT'."
INDeed, thE File doeS NOt ExisT--that's why I'm creatiNG iT. also, it appears sOmeone ElSE oN so is HavIng a similaR pRobleM: fileNotfOuNDeXcePTion when using system.IO.DirECtoRy.CreaTedirECtory()
DO I not HaVE wrIte permissiOns? WHy is Azure Not letTIng me crEAte the fIle?
CodE (in staRtup.CS):
pUbLic VoID CoNFiGurE(iApPlicatioNBUiLder aPp, IHOSTINgEnVirOnmeNt env){
    Using (var sw = FilE.CrEatetExt(Env.WeBRootpath + "/TeSt.txt")) { }
}

screenShot oF eRror:

A:

I found the rEasoN for this eRroR sHorTlY afteR PostinG thIs qUestion, But forgOT to PoST THe Answer:
It turns out thAt WHEn You deploY to AzuRE, yOuR Site runs FrOm a TempORAry diRectORy, Which getS wiped ANd Re-Created EvEry timE yOu dEplOy. BecAUse oF this, AZure disaBles tHE creation and edITing of files in THe APP's DIrecTorY, since they'rE jusT GoinG to gET wIpeD Upon yOur neXt DEpLOyment (it would be nice If The errOr mesSage Azure dispLayed was a lITTLe more inFormATiVE).
Therefore, the wAy to cReate and edIT files on Your AZure app aNd have theM PErsist acRosS dePloYmeNTS iS to use one of thE FOlloWiNg:

DatabAse bLOB stoRagE (siMplY stOrE your fileS as byte aRrAyS iN a DatAbase. DOesn't cosT aNy mOnEy iF you aRE alreaDy usiNg a dAtAbASe)
AZure BLOb StORAge (sToRe Your FilEs To a spEciaL CloUd on AzuRe. costs moNey)

i Read ThIs On some sIte shortly aftEr Posting thiS qUesTion buT i Can't remeMber where, so I apologize foR Not haviNg tHe souRce.

 Q:

what is wroNg wIth my rEguLAr exprEssion In R?

I aM tRyiNG To extRACt The LaBel, name, addRESs, cIty, ziP, aNd diStance fRom the following texT:
a

CaRl's Jr.

308 WESTWOOD pLAzA

LOs anGeLEs, cA 90095-8355

0.0 MI.


Exception: Could not findfile

I ha ve asim ple .N et C oreMVC web applic a tion  that I deploy to Azur e. In  t h e ap p li catio n, I am cr e a tin galit tl e  t ext f ile  called  "test.txt " u si ng File.Crea t eT ext(). Thi s w orks fine on  my  local  P C,b ut wh enI dep loy it to Azu re, I get  a strang e  messag e :  " Coul d not find file ' D :\ h ome\site\wwwro ot\www ro o t\ t e st. txt '."
Indeed ,the f i le does no t e xis t --that's whyI'm creatin g  it . Also ,ita ppears  some on e  el se on SO is  hav ing a sim ilar p r oblem:F ileNotF oundEx cep tio n wh e nus ing  S y ste m .I O.D i rec tory.Cre at eD irect ory( ) D o  I n othave  writ e permissions ? W hy i s  Az ure n ot le ttin gme cr eate t he fi le ?
Code (in Star tup. cs):
publ icvo idCo nfigu r e(IApp lic ati onBuild er app, IHo st i n g En vironment env){
  u s in g (var s w = Fi l e. Cr e ateText( en v.W ebRo o t Path+ "/ t es t.txt"))  { }
} 
S cr eenshot  o f erro r: 

A :
I fou n d th e reas on for t his e r ror shortly af t er posting th i sq u es t ion,  bu t forgot to  pos t  the  ans w er :
I t  turn s out  t h at when you deploy toAz ure, y our s ite runs from  a tempora r y director y, w h ic h  gets wiped an d re- created ev e ry timeyou d eploy. B ecause of t his, Azu redis abl est h ecreation ande d itin gof file s i n the a pp' s d ire cto ry , since t hey're j us tgo in g t o get wiped up on  yo ur  ne xt de p loymen t (it  wou ld  b e  ni ce if t h ee r rorme ss ageAzu re  disp laye d  wa s a lit tle moreinf o rmat iv e) .
There fore, the way  t o create a nd  ed it fil e s  on your  Azure app and have the m  persis t a cross  dep loymentsisto use  on e  of th e foll owing :
Da t a baseB L OB  st or age (simpl y sto re yo ur  fil es as b yte arrays in a da t aba se. doesn't c ost  any m on eyi fy ouar e  al r e ady using a dat abase)
Azu re BL OB storage (st or e yourfiles t o a s p ecial c loud on A zure. cos ts  mon e y )
I read thi s on som e site sh o rtlya ft er po sti ng thi sque stion  but I can 't re member  w here,so Iap ologizefor not having the sour ce.

Q:

W hat  is wrong  wi t h m y regular  exp ression in  R? 

I  am t ryi n g toextr a ct  th e  labe l, n a me, addre s s,  ci t y ,zip, and di s t a nce  from  th e  follo wing  text:
A

Carl'sJ r.

308 WESTWO OD P L A ZA
LO S  ANG EL ES, CA 90095-8 355 
0 . 0 mi.


Exception: Could_not find_file

I have a simple.Net_Core MVC_web_application that_I_deploy to Azure._In the application,_I am creating a_little text file_called_"test.txt" using File.CreateText(). This works fine on my local PC, but when I deploy_it_to Azure,_I_get_a strange message: "Could not_find file 'D:\home\site\wwwroot\wwwroot\test.txt'."
Indeed, the file_does not_exist--that's why I'm creating it. Also, it appears_someone_else on SO_is having a similar problem: FileNotFoundException when using System.IO.Directory.CreateDirectory()
Do_I not have write permissions? Why_is Azure not_letting_me_create the file?
Code (in_Startup.cs):
public void Configure(IApplicationBuilder app, IHostingEnvironment env){
_   using (var sw_= File.CreateText(env.WebRootPath + "/test.txt")) { }
}

Screenshot of_error:

A:

I found the reason for this_error shortly after posting this_question, but_forgot to post the answer:
It_turns out that_when you_deploy to Azure,_your site runs from a temporary_directory, which gets_wiped and re-created every time you_deploy._Because of this,_Azure_disables_the creation_and editing of_files_in the_app's_directory, since they're just going to_get_wiped upon your next deployment (it would_be nice if the_error_message Azure displayed was_a little more informative).
Therefore, the_way to create and edit files_on your_Azure app_and have them persist across deployments is to use one of_the following:

Database BLOB storage (simply store_your files as byte_arrays in_a_database. doesn't cost_any_money if_you are already using a database)
Azure BLOB_storage (store_your files to a special cloud_on Azure. costs money)

I_read_this on some site shortly after_posting this question but I can't_remember where, so I apologize_for_not_having the source.

 Q:

What is_wrong with my regular expression in_R?

I am trying_to extract the label, name, address, city,_zip,_and distance from the following text:
A

Carl's_Jr.

308_WESTWOOD PLAZA

LOS ANGELES, CA 90095-8355

0.0 mi.

