write-error

问题 I am trying to delete some records from MongoDB that have dirty values, but whenever I try to delete it, I am getting the writeError with code 9 . A sample of the dirty document is as follows: { "_id" : "some_unique_id_abcd", "tmp" : "1415772407377", "hiv" : "0.0", "liv" : "0.0", "oindx" : "0.0" } The remove command executed is as follows: db.myCollection.remove({"_id" : "some_unique_id_abcd"}); The following error is thrown WriteResult({ "writeError" : { "code" : 9, "errmsg" : "wrong type

问题 Why isn't Powershell's Write-Error cmdlet working for me? My output doesn't look like the examples in the documentation: PS C:\> Write-Error "This is an error" Write-Error "This is an error" : This is an error + CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException I had been expecting output similar to Write-Warning: PS H:\> Write-Warning "This is a warning" WARNING: This is a warning From the Write

问题 I have an Arduino with a Seeedstudio sd card shield v4.0 with a prototpye shield above that, and on that is a TMP36 temperature sensor and a red and two green LEDs, the red to show that it is "Ready" to log data, the first green to show that it is currently "logging data" and the last LED to show that the data was "Saved" to the SD card, which it dosent, at the beggining of the file, however, it creates the line "Testing 1, 2, 3..." in a txt file called TEST. in that same file there should be