The latest version (1.0.1) regularly generates the following error while i'm typing, not necessarily during autocomplete (also, this results in a very annoying/distracting VSCode error popup):
[Error - 10:36:53 AM] TypeError: Cannot read property 'value' of undefined
at /home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:312591
at C (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:312937)
at /home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:298279
at n (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:298301)
at t (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:293074)
at n (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:300855)
at t (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:293074)
at n (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:300855)
at t (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:293074)
at n (/home/vanaarde/.vscode/extensions/bmewburn.vscode-intelephense-client-1.0.1/node_modules/intelephense/lib/intelephense.js:39:296727)
[Error - 10:36:53 AM] Request completionItem/resolve failed.
Message: Request completionItem/resolve failed with message: Cannot read property 'value' of undefined
Code: -32603
Version info according to the VSCode "about" dialog:
VSCode: 1.3.1
Electron: 3.1.2
Node.js: 10.2.0
V8: 6.6.346.32
OS: Linux x64 4.18.0-15-generic
Same here, had to revert to 0.8.8 because vscode kept interrupting to alert about intelephense crashing.
How to revert to 0.8.8 ?
How to revert to 0.8.8 ?
Go to extensions, select PHP Intelephense, click the gear icon and then "Install another version..."
fixed in 1.0.2
@bmewburn do you already know when 1.0.2 will be released? It doesn't show up in my VsCode install:

Most helpful comment
fixed in 1.0.2