vscode: [Bug] Extension host did not start in 10 seconds, it might be stopped on the first line and needs a debugger to continue.

Issue Type: Bug

Extension host did not start in 10 seconds, it might be stopped on the first line and needs a debugger to continue.

VS Code version: Code - Exploration 1.34.0-exploration (a872a905cad7185d9bf55603aa95436df2df3601, 2019-04-18T05:58:32.373Z) OS version: Windows_NT x64 10.0.18362

System Info

Item	Value
CPUs	Intel® Core™ i5-7200U CPU @ 2.50GHz (4 x 2712)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	7.89GB (3.91GB free)
Process Argv
Screen Reader	no
VM	40%

Extensions (26)

Extension	Author (truncated)	Version
better-comments	aar	2.0.3
Bookmarks	ale	10.4.3
markdown-emoji	bie	0.0.8
markdown-preview-github-styles	bie	0.1.5
file-positioning	ddz	1.0.4
vscode-great-icons	emm	2.1.47
vsc-material-theme	Equ	2.8.2
flow-for-vscode	flo	1.1.1
vscode-power-mode	hoo	2.2.0
comment-translate	int	1.3.6
vscode-styled-components	jpo	0.0.26
types-autoinstaller	jvi	2.4.0
easy-less	mrc	1.4.5
vscode-language-pack-zh-hans	MS-	1.33.2
python	ms-	2019.3.6558
vetur	oct	0.18.1
java	red	0.43.0
LiveServer	rit	5.6.1
code-settings-sync	Sha	3.2.9
vscode-leetcode	she	0.13.3
mark-jump	spy	0.8.2
language-stylus	sys	1.11.0
crs-al-language-extension	wal	1.1.3
JavaScriptSnippets	xab	1.7.2
markdown-all-in-one	yzh	2.2.0
swig	zhu	0.0.5

(2 theme extensions excluded)

Current Feature

1. I generate my typescript extension project by yo code.
2. Then press F5 to run Extension Development Host, but this error occurred:

Expected Feature

I found lots of issues(like #20581, #129, 4308), but it seems not solved…