Failed to display the attribute and Developer Error while loading heavy data

Hi Omar

Thanks for the reply. As per your suggestion I tried the second option. At the time of installation I got the following error. I am using Nodejs version v10.15.1

2294 verbose stack Error: sha512-Pxm6sI2MeBD7RdD12RYsqaP0nMiwx8eZBXCa6z2L+mRHm2DYrOYwihmhjpkdjUHwQhslWQjRpEgNq4XvBmaAuw== integrity checksum failed when using sha512: wanted sha512-Pxm6sI2MeBD7RdD12RYsqaP0nMiwx8eZBXCa6z2L+mRHm2DYrOYwihmhjpkdjUHwQhslWQjRpEgNq4XvBmaAuw== but got sha512-9do13XjsuHV50Q0BYcZQRFJWISwq/8tb8/sIvSbU7zMPMW1J5BepDr0lZE3wyeEc3SmFn0zgU9RaSGNGr+vRYw==. (3123 bytes)

2294 verbose stack at Transform.on (C:\Program Files\nodejs\node_modules\npm\node_modules\ssri\index.js:310:19)

2294 verbose stack at Transform.emit (events.js:194:15)

2294 verbose stack at endReadableNT (_stream_readable.js:1103:12)

2294 verbose stack at process._tickCallback (internal/process/next_tick.js:63:19)

2295 verbose cwd C:\Program Files\3DCityDB-Importer-Exporter\3d-web-map-client\3dcitydb-web-map-1.6.1\cesium-master\cesium-master

2296 verbose Windows_NT 6.1.7601

2297 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"

2298 verbose node v10.15.1

2299 verbose npm v6.4.1

2300 error code EINTEGRITY

2301 error sha512-Pxm6sI2MeBD7RdD12RYsqaP0nMiwx8eZBXCa6z2L+mRHm2DYrOYwihmhjpkdjUHwQhslWQjRpEgNq4XvBmaAuw== integrity checksum failed when using sha512: wanted sha512-Pxm6sI2MeBD7RdD12RYsqaP0nMiwx8eZBXCa6z2L+mRHm2DYrOYwihmhjpkdjUHwQhslWQjRpEgNq4XvBmaAuw== but got sha512-9do13XjsuHV50Q0BYcZQRFJWISwq/8tb8/sIvSbU7zMPMW1J5BepDr0lZE3wyeEc3SmFn0zgU9RaSGNGr+vRYw==. (3123 bytes)

2302 verbose exit [ 1, true ]