error on startup: "Error using connector.​internal.a​utostart.r​un"

##edit problem solved- there was a system variable defined as TEMP = "459,9" and after deletion everything works again.

upon start matlab displays following error:

 Error using connector.internal.autostart.run
 Cannot CD to 459,9 (Name is nonexistent or not a directory).

I tried to reinstall Matlab but it is still broken.

Maybe following querry can help:

 >> which -all cd
 built-in (C:\Program Files\MATLAB\R2015b\toolbox\matlab\general\cd)
 C:\Program Files\MATLAB\R2015b\toolbox\matlab\iofun\@ftp\cd.m                   % ftp method
 C:\Program Files\MATLAB\R2015b\toolbox\idelink\extensions\ticcs\@ccsdebug\cd.m  % ccsdebug method

[Walter Roberson]

Try running

connector off

[Jonas Keller]

Thanks for the fast answer, but matlab now fails to start the parpool, i get following error (do_proc.m is my current script):

 Warning: Unable to calculate the dependencies of the files:
  C:\Program Files\MATLAB\R2015b\toolbox\distcomp\@distcomp\nop.m

 because:
Cannot CD to 459,9 (Name is nonexistent or not a directory). 
> In parallel.internal.apishared.AttachedFiles.calculateAttachedFiles (line 289)
  In parallel.Task/hCalculateDependentFiles (line 619)
  In parallel.Task/hCalculateAndCacheDependentFiles (line 637)
  In parallel.Job>@(t)t.hCalculateAndCacheDependentFiles(taskFunctionCache) (line 695)
  In parallel.Job/attachRequiredFiles (line 694)
  In parallel.Job/submit (line 304)
  In parallel.internal.pool.InteractiveClient/start (line 330)
  In parallel.Pool>iStartClient (line 547)
  In parallel.Pool.hBuildPool (line 439)
  In parallel.internal.pool.doParpool (line 15)
  In parpool (line 89)
  In parallel.internal.pool.PoolArrayManager.getOrAutoCreateWithCleanup (line 49)
  In pctTryCreatePoolIfNecessary (line 23)
  In distcomp.remoteparfor.tryRemoteParfor
  In parallel_function (line 433)
  In do_proc (line 131)

Answer 1

[Tushar Sinha]

Hi Jonas,

"Error using connector.internal.autostart.run Cannot CD to 459,9 (Name is nonexistent or not a directory)."

These error messages are typically displayed when MATLAB does not have read-write access to the temporary folder. Change the permissions to this folder as an administrator and the issue should be resolved.

Thanks,

Tushar

[Jonas Keller]

Thank you, Matlab on my working station has full access to all avaible folders. Furthermore I have searched my entire workingstation and the accessable intranet for a folder named '459*' and there is no such folder. Therefore I assume that I have somehow managed to tell matlab to search for such a folder (459,9K is the Temperatur many of my samples have been measured, so I had to type 459,9 very often). Can you/someone tell me where I can add such a path/how to remove it?

as Walter Roberson told me I turned off the connector, but now i am no longer able to use the parpool/parfor options

Answer 2

[Jonas Keller]

push

Thank you, Matlab on my working station has full access to all avaible folders. Furthermore I have searched my entire workingstation and the accessable intranet for a folder named '459*' and there is no such folder. Therefore I assume that I have somehow managed to tell matlab to search for such a folder (459,9K is the Temperatur many of my samples have been measured, so I had to type 459,9 very often). Can you/someone tell me where I can add such a path/how to remove it?

as Walter Roberson told me I turned off the connector, but now i am no longer able to use the parpool/parfor options

[Walter Roberson]

Then turn the connector back on again. I said "try", not that it was the final answer.

[Walter Roberson]

What is the result of executing

tempdir

?

What does

getenv('TEMP')

show?

[Jonas Keller]

>> tempdir

Error using cd Cannot CD to 459,9 (Name is nonexistent or not a directory).

Error in tempdir (line 30) curr_dir = cd(tmp_dir);

>> getenv('TEMP')

ans =

459,9

################

somehow, i have created a system variable with the value TEMP = "459,9". I have deleted this variable and now everything works fine.

Thank you all for your answers!