In VSC Task Window always popping up: "Error: No handler found"

cyberman54 · February 10, 2019, 1:22pm

I’m using Platformio on Visual Studio Code on an Windows 10 machine.
It’s running fine, but in my project i always get an annoying “Error: no handler found” error when i start tasks like build or upload.

I have no clue what’s causing this. Any hints how to solve this?

maxgerhardt · February 10, 2019, 1:23pm

Can you upload a full log when executing pio run -v to here or pastebin.com?

cyberman54 · February 10, 2019, 4:06pm

I’m sorry, i can’t, because there are too many private entries in the log.
What does “no handler” mean? Where to look for the cause?

maxgerhardt · February 10, 2019, 4:12pm

Oh actually I realized that you say that it’s a VSCode popup and not some text printed in the compilation or the upload. As thus these logs don’t help. Well then, I have no idea where such an error could be thrown, but maybe @ivankravets does? Can you provide a screenshot of that error?

cyberman54 · February 10, 2019, 4:15pm

cyberman54 · February 10, 2019, 4:16pm

I think this error occurs after a task job is started, like build or upload. Maybe something with the (python?) scripts behind the task buttons?

cyberman54 · February 10, 2019, 4:20pm

Could be this error from visual studio code:

github.com

Microsoft/vscode/blob/980eb3e504e96a62ee062e37c7c3691f865a5551/src/vs/workbench/api/node/extHostDebugService.ts#L551


      
          				}
          			}
          		}
          
          
		this.fireBreakpointChanges(a, r, c);
          	}
          
          
	public $provideDebugConfigurations(configProviderHandle: number, folderUri: UriComponents | undefined): Promise<vscode.DebugConfiguration[]> {
          		let provider = this.getConfigProviderByHandle(configProviderHandle);
          		if (!provider) {
          			return Promise.reject(new Error('no handler found'));
          		}
          		if (!provider.provideDebugConfigurations) {
          			return Promise.reject(new Error('handler has no method provideDebugConfigurations'));
          		}
          		return asPromise(() => provider.provideDebugConfigurations(this.getFolder(folderUri), CancellationToken.None));
          	}
          
          
	public $resolveDebugConfiguration(configProviderHandle: number, folderUri: UriComponents | undefined, debugConfiguration: vscode.DebugConfiguration): Promise<vscode.DebugConfiguration> {
          		let provider = this.getConfigProviderByHandle(configProviderHandle);
          		if (!provider) {

mrred128 · February 11, 2019, 12:28am

I’ve had that issue a few months, at least. No ill effects on operation…so I just ignore it.

cyberman54 · February 11, 2019, 7:17am

Can’t ignore it, since it everytime forces me to press button to get rid of the popup

pfeerick · February 11, 2019, 9:13am

That’s popping up for me also, with ESP8266 and AVR projects on linux and more than one machine now… doesn’t seem to be causing any issues, but it is a bit disconcerting that it keeps popping up…

mrred128 · February 11, 2019, 5:41pm

i don’t get a popup. it just appears in my compile window.

cyberman54 · February 11, 2019, 6:35pm

Then you probably did not yet the lastet VSC Upgrade, with this a Popup appears each time the error occurs in Task Window. And i did not yet find the setting to suppress this.

mrred128 · February 11, 2019, 6:54pm

latest-greatest here.

pfeerick · February 12, 2019, 11:49am

Same here… 1.31 IIRC, and a popup comes up at the bottom right every time that needs to clicked to get rid of it… prior to that it was just a message in the log that went away when it switched to the task terminal.

nebbles · February 12, 2019, 3:00pm

Can confirm I am also getting this and it’s been bugging me. Doesn’t prevent build from failing. Just every time I build.

Not a confidential project so can provide logs if necessary…

atanisoft · February 12, 2019, 3:02pm

I can also confirm seeing this on the latest VSCode. I’ve seen the “no handler found” error for a couple months but it was non-intrusive, but with the latest update to VSCode it now has the popup which doesn’t get automatically dismissed. This seems to be a bug in the PIO plugin but I haven’t dug into where/what is missing myself.

jasonpecor · February 13, 2019, 4:01pm

This is a problem for me, as well.

My setup:

PlatformIO Version: 1.6.0 (2018-12-12)
VSCode Version: 1.31.1 (1.31.1)
macOS Mojave 10.14.2

I have been seeing the “Error: No handler found” errors in the OUTPUT window/tab for quite some time; however the popup window is relatively recent.

Is there any clarity whether this is a native VSCode problem or PIO?

Alchem1sten · February 13, 2019, 9:55pm

Same problem here, the pop up is annoying

pfeerick · February 14, 2019, 5:15am

I’ve had that same issue on two debian linux boxes now running VSCode 1.31.1 and PIO Core 3.6.4, and I think it’s related to program AVR / Arduino environments, as my AVR (328p uno and 8mhz bare) projects are giving that error, but my ESP8266 (Arduino also) ones are fine - no errors from them?

Thomseeen · February 14, 2019, 6:55am

Without having tested that it would make sense as my machine at home (AVR/Arduino platform and espressif platform installed) throws those errors as I build for the ESP8266 with Arduino and my machine at work (only espressif) doesn’t (building ESP32 with ESP-IDF)… Both are Win10, VSCode 1.31.1 and PIO Core 3.6.4.