Errors when making a dotnet app from C# API

vishwanathkr · September 2017

I use the CSharp DotNet dlls for making a wpf app. But I get the following errors when call,

await metawearApiObj.InitializeAsync();

Exception thrown: 'System.IO.DirectoryNotFoundException' in mscorlib.dll

metawear: Could not deserialize board attributes

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)

at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)

at System.IO.File.Open(String path, FileMode mode)

at MbientLab.MetaWear.Win10.Application.IO.<LocalLoadAsync>d__2.MoveNext()

vishwanathkr · September 2017

On bypassing,

await io.LocalLoadAsync(BOARD_ATTR);

I still get Exception thrown:

'System.NullReferenceException' in MbientLab.MetaWear.DotNet.dll

DeviceAccessInformation 'item.DeviceAccessInformation' threw an exception of type 'System.Exception'

StackTrace" at Windows.Devices.Bluetooth.BluetoothLEDevice.get_DeviceAccessInformation()"string

Message "Call context cannot be accessed after call completed. (Exception from HRESULT: 0x80010117)" string

Eric · September 2017

Three is already an existing thread about this topic:

https://mbientlab.com/community/discussion/2255/difficulties-with-new-windows-10-c-sdk#latest

Laura · September 2017

Errors when making a dotnet app from C# API

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