xrExtras build errors

we published our project several months ago and everything has been working fine. Though now exporting and trying to build our project fails in the xrExtras sources we pulled into our project from GitHub - 8thwall/web: 8th Wall Web projects and resources. Our changes added UI to the loadingmodule and are not related to these errors. Most of them seem implicit type errors, and I guess should be relatively easy to address, though has anyone encountered this issue, already solved this and willing to share? There are 42 errors, here are two random ones…

ERROR in D:\8thwall\project\src\xrExtras\fullwindowcanvasmodule\full-window-canvas-module.ts
./xrExtras/fullwindowcanvasmodule/full-window-canvas-module.ts 4:6-13
[tsl] ERROR in D:\8thwall\project\src\xrExtras\fullwindowcanvasmodule\full-window-canvas-module.ts(4,7)
TS7034: Variable ‘canvas_’ implicitly has type ‘any’ in some locations where its type cannot be determined.
@ ./xrExtras/xrextras.js 4:0-93 21:20-43
@ ./app.js 36:0-50 37:18-26

ERROR in D:\8thwall\project\src\xrExtras\sessionreconfiguremodule\session-reconfigure-module.ts
./xrExtras/sessionreconfiguremodule/session-reconfigure-module.ts 110:12-28
[tsl] ERROR in D:\8thwall\project\src\xrExtras\sessionreconfiguremodule\session-reconfigure-module.ts(110,13)
TS2322: Type ‘((data: any) => boolean) | undefined’ is not assignable to type ‘SessionPreventer’.
Type ‘undefined’ is not assignable to type ‘SessionPreventer’.
@ ./xrExtras/xrextras.js 15:0-98 32:22-47
@ ./app.js 36:0-50 37:18-26