Cannot read property 'toLowerCase' of undefined

[IVerkhosh]

Summary

Executing sfdx force:source:retrieve resulted in "Cannot read property 'toLowerCase' of undefined" error

Steps To Reproduce:

1. Execute sfdx force:source:retrieve -x ./manifest/PROD_package.xml --json

Expected result

Components retrieved from Org.

Actual result

Error "Cannot read property 'toLowerCase' of undefined"

sfdx force:source:retrieve -x ./manifest/PROD_package.xml --json --loglevel trace
{
"status": 1,
"name": "TypeError",
"message": "Cannot read property 'toLowerCase' of undefined",
"exitCode": 1,
"commandName": "Retrieve",
"stack": "TypeError: Cannot read property 'toLowerCase' of undefined\n at RegistryAccess.getTypeByName (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\source-deploy-retrieve\lib\src\registry\registryAccess.js:27:28)\n at ManifestResolver. (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\source-deploy-retrieve\lib\src\resolve\manifestResolver.js:42:42)\n at Generator.next ()\n at fulfilled (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\source-deploy-retrieve\lib\src\resolve\manifestResolver.js:11:58)\nOuter stack:\n at Function.wrap (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\plugin-source\node_modules\@salesforce\command\node_modules\@salesforce\core\lib\sfdxError.js:171:27)\n at Retrieve.catch (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\plugin-source\node_modules\@salesforce\command\lib\sfdxCommand.js:248:67)\n at async Retrieve._run
(C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@salesforce\plugin-source\node_modules\@salesforce\command\lib\sfdxCommand.js:85:13)\n at async Config.runCommand (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@oclif\config\lib\config.js:173:24)\n at async SfdxMain.run (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@oclif\command\lib\main.js:27:9)\n at async SfdxMain._run (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\node_modules\@oclif\command\lib\command.js:43:20)\n at async Object.run (C:\Users\ixv4\AppData\Local\sfdx\client\7.117.0-b5a8ac9\dist\cli.js:162:47)",
"warnings": []
}

System Information

{
"cliVersion": "sfdx-cli/7.117.0",
"architecture": "win32-x64",
"nodeVersion": "node-v14.17.6",
"pluginVersions": [
"@oclif/plugin-autocomplete 0.3.0 (core)",
"@oclif/plugin-commands 1.3.0 (core)",
"@oclif/plugin-help 3.2.2 (core)",
"@oclif/plugin-not-found 1.2.4 (core)",
"@oclif/plugin-plugins 1.10.1 (core)",
"@oclif/plugin-update 1.4.0-3 (core)",
"@oclif/plugin-warn-if-update-available 1.7.0 (core)",
"@oclif/plugin-which 1.0.3 (core)",
"@salesforce/sfdx-plugin-lwc-test 0.1.7 (core)",
"@salesforce/sfdx-trust 3.6.0 (core)",
"alias 1.1.10 (core)",
"apex 0.2.8 (core)",
"auth 1.7.1 (core)",
"config 1.2.28 (core)",
"custom-metadata 1.0.12 (core)",
"data 0.6.1 (core)",
"generator 1.1.7 (core)",
"limits 1.2.1 (core)",
"org 1.7.0 (core)",
"salesforce-alm 52.3.2 (core)",
"schema 1.0.8 (core)",
"sfdx-cli 7.117.0 (core)",
"source 1.0.12 (core)",
"telemetry 1.2.3 (core)",
"templates 52.1.0 (core)",
"user 1.4.0 (core)"
],
"osVersion": "Windows_NT 10.0.18363"
}

Additional information

Feel free to attach a screenshot.

[github-actions]

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[IVerkhosh]

I found what causing this error.
I added documents and dashboard folders without the closing tag.
It should point to the error in xml file, instead of "Cannot read property 'toLowerCase' of undefined", which does not indicate anything

[khookguy]

I also experienced this when I was missing a closing tag in my package.xml. Thanks @IVerkhosh for reporting this or I would have spent hours trying to figure it out!

[marcilenne]

I removed the complete <type> </type> and it worked

[vmunisamy]

I found what causing this error. I added documents and dashboard folders without the closing tag. It should point to the error in xml file, instead of "Cannot read property 'toLowerCase' of undefined", which does not indicate anything

Thanks, got the same issue