wasp 0.19 error

i updated to wasp 0.19 and im getting an error when i run wasp start.
[ Server ] src/webSocket/initialization.ts(11,29): error TS5097: An import path can only end with a '.ts' extension when 'allowImportingTsExtensions' is enabled.
[ Server!] npm error Lifecycle script bundle failed with error:
[ Server!] npm error code 2
[ Server!] npm error path /home/guinness/PetTreat/pets/app/.wasp/out/server
[ Server!] npm error workspace @wasp.sh/generated-server-dev@0.0.0
[ Server!] npm error location /home/guinness/PetTreat/pets/app/.wasp/out/server
[ Server!] npm error command failed
[ Server!] npm error command sh -c tsc --build && rollup --config --silent
[ Server!] npm error Lifecycle script bundle-and-start failed with error:
[ Server!] npm error code 2
[ Server!] npm error path /home/guinness/PetTreat/pets/app/.wasp/out/server
[ Server!] npm error workspace @wasp.sh/generated-server-dev@0.0.0
[ Server!] npm error location /home/guinness/PetTreat/pets/app/.wasp/out/server
[ Server!] npm error command failed
[ Server!] npm error command sh -c npm run bundle && npm run start why is this happening?
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