[BUG] Discord Webhook error and Slack @Mention Not showing User

[SageTakeshi]

What happened?

PS>TerminatingError(New-DiscordPayload): "Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'."

TerminatingError(New-DiscordPayload): "Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'."
2025-05-14T16:18:44.997Z [ERROR] Discord notification could not be sent: Message=Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'.

Slack issue picture attached.

Steps To Reproduce

No response

VeeamNotify version

v2.0.0

PowerShell version

5.1

Veeam Backup & Replication build number

12.3.1.1139

Relevant log output

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Windows PowerShell transcript start
Start time: 20250514110115
Username: 
RunAs User: 
Configuration Name: 
Machine: LAB-VEEAM25 (Microsoft Windows NT 10.0.26100.0)
Host Application: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -ExecutionPolicy Bypass -File C:\VeeamScripts\VeeamNotify\Bootstrap.ps1
Process ID: 16916
PSVersion: 5.1.26100.4061
PSEdition: Desktop
PSCompatibleVersions: 1.0, 2.0, 3.0, 4.0, 5.0, 5.1.26100.4061
BuildVersion: 10.0.26100.4061
CLRVersion: 4.0.30319.42000
WSManStackVersion: 3.0
PSRemotingProtocolVersion: 2.3
SerializationVersion: 1.1.0.1
**********************
2025-05-14T16:01:15.107Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-05-14_11.01.15_Bootstrap.log'.
2025-05-14T16:01:15.236Z [INFO] Version: v2.0.0
2025-05-14T16:01:15.830Z [INFO] Configuration validated successfully.
2025-05-14T16:01:16.111Z [INFO] Getting VBR job details
2025-05-14T16:01:25.680Z [INFO] Getting VBR session information
2025-05-14T16:01:25.869Z [INFO] Bootstrap script for Veeam job ' (Full)' (job b9ee2ebf-1894-42c4-8dd8-69cc5f05f73f session c26680f2-2698-46e0-aa8a-579b6c508730) - Session & job detection complete.
2025-05-14T16:01:25.893Z [INFO] Launching AlertSender.ps1...
2025-05-14T16:01:25.950Z [INFO] AlertSender.ps1 launched successfully.
2025-05-14T16:01:25.963Z [INFO] Stopping transcript logging.
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Windows PowerShell transcript end
End time: 20250514110125
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Windows PowerShell transcript start
Start time: 20250514110130
Username: 
RunAs User: 
Configuration Name: 
Machine: LAB-VEEAM25 (Microsoft Windows NT 10.0.26100.0)
Host Application: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -File C:\VeeamScripts\VeeamNotify\AlertSender.ps1 -SessionId c26680f2-2698-46e0-aa8a-579b6c508730 -JobType Backup -Config {
  "services": {
           "discord": {
                   "enabled": true,
                   "webhook": "",
                   "user_id": ""
                 },
           "slack": {
                  "enabled": true,
                  "webhook": "",
                  "user_id": ""
                },
           "teams": {
                  "enabled": false,
                  "webhook": "TeamsWebhook",
                  "user_id": "user_id",
                  "display_name": "user_display_name"
                },
           "telegram": {
                   "enabled": false,
                   "bot_token": "TelegramBotToken",
                   "chat_id": "TelegramChatID",
                   "user_name": "yourusername"
                 },
           "http": {
                 "enabled": false,
                 "url": "EndpointURL",
                 "method": "POST"
               }
         },
  "mentions": {
           "on_failure": true,
           "on_warning": false
         },
  "notifications": {
             "on_success": true,
             "on_failure": true,
             "on_warning": true
           },
  "logging": {
          "enabled": true,
          "level": "info",
          "max_age_days": 7
        },
  "update": {
          "notify": true,
          "auto_update": false,
          "auto_update_comment": "auto_update is not yet implemented. This will do nothing even if \u0027true\u0027."
        },
  "thumbnail": "https://raw.githubusercontent.com/tigattack/VeeamNotify/main/asset/thumb01.png"
}
 -Logfile C:\VeeamScripts\VeeamNotify\log\2025-05-14_11.01.15-_(Full).log
Process ID: 17560
PSVersion: 5.1.26100.4061
PSEdition: Desktop
PSCompatibleVersions: 1.0, 2.0, 3.0, 4.0, 5.0, 5.1.26100.4061
BuildVersion: 10.0.26100.4061
CLRVersion: 4.0.30319.42000
WSManStackVersion: 3.0
PSRemotingProtocolVersion: 2.3
SerializationVersion: 1.1.0.1
**********************
2025-05-14T16:01:30.466Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-05-14_11.01.15-_(Full).log'.
PS>TerminatingError(New-DiscordPayload): "Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'."
>> TerminatingError(New-DiscordPayload): "Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'."
2025-05-14T16:01:41.538Z [ERROR] Discord notification could not be sent: Message=Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'.
2025-05-14T16:01:41.925Z [INFO] Slack notification sent successfully.
2025-05-14T16:01:42.013Z [INFO] Stopping transcript logging.
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Windows PowerShell transcript end
End time: 20250514110142
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[tigattack]

Thanks for the report. It seems this was also spotted by @blink-zero in #110. I think this bug was introduced in 598cb86. From a quick test, reverting that seems to resolve it.

I'll revert that commit and push a patch release. Watch out for a new release shortly and let me know how it goes.

Side note, I think pushing a release will actually break all notifications for all users of v2.0.0, as the same logic that's broken here is used to add the update notice to the message... 😬 Sorry!

[tigattack]

On second thoughts, if either you or blink-zero would be happy to test these changes before I make a release, I'd greatly appreciate it. Let me know if you're willing but unsure how to test, happy to help.

If not, I'll make a new release in a day or two.

[blink-zero]

Hey @tigattack ,

I did make some changes in my forked version that addresses the op_Addition problem and the tagging for the discord messages coming through also.

I'm currently running this (and have been for about a week or so) and I've not had any issues with it so far, but I'm sure there is a more elegant way to write it.

Thanks!

[tigattack]

Great to hear you managed to fix it. It'd be much appreciated if anyone is willing to test the changes in #112!

[SageTakeshi]

Here is the log for the changes made.

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Windows PowerShell transcript start
Start time: 20250521043141
Username: 
RunAs User: 
Configuration Name: 
Machine: LAB-VEEAM25 (Microsoft Windows NT 10.0.26100.0)
Host Application: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -ExecutionPolicy Bypass -File C:\VeeamScripts\VeeamNotify\Bootstrap.ps1
Process ID: 9140
PSVersion: 5.1.26100.4061
PSEdition: Desktop
PSCompatibleVersions: 1.0, 2.0, 3.0, 4.0, 5.0, 5.1.26100.4061
BuildVersion: 10.0.26100.4061
CLRVersion: 4.0.30319.42000
WSManStackVersion: 3.0
PSRemotingProtocolVersion: 2.3
SerializationVersion: 1.1.0.1
**********************
2025-05-21T09:31:41.064Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-05-21_04.31.40_Bootstrap.log'.
2025-05-21T09:31:41.478Z [INFO] Version: v2.0.0
2025-05-21T09:31:42.153Z [INFO] Configuration validated successfully.
2025-05-21T09:31:42.977Z [INFO] Getting VBR job details
2025-05-21T09:31:55.633Z [INFO] Getting VBR session information
2025-05-21T09:31:55.818Z [INFO] Bootstrap script for Veeam job 'Uptime Kuma (Full)' (job b9ee2ebf-1894-42c4-8dd8-69cc5f05f73f session 503f7d85-603a-4ab7-8c13-176bbce148de) - Session & job detection complete.
2025-05-21T09:31:55.837Z [INFO] Launching AlertSender.ps1...
2025-05-21T09:31:55.896Z [INFO] AlertSender.ps1 launched successfully.
2025-05-21T09:31:55.911Z [INFO] Stopping transcript logging.
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Windows PowerShell transcript end
End time: 20250521043155
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**********************
Windows PowerShell transcript start
Start time: 20250521043200
Username: 
RunAs User: 
Configuration Name: 
Machine: LAB-VEEAM25 (Microsoft Windows NT 10.0.26100.0)
Host Application: C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -File C:\VeeamScripts\VeeamNotify\AlertSender.ps1 -SessionId 503f7d85-603a-4ab7-8c13-176bbce148de -JobType Backup -Config {
  "services": {
           "discord": {
                   "enabled": true,
                   "webhook": "",
                   "user_id": "449405208246"
                 },
           "slack": {
                  "enabled": true,
                  "webhook": "",
                  "user_id": ""
                },
           "teams": {
                  "enabled": false,
                  "webhook": "TeamsWebhook",
                  "user_id": "user@domain.tld",
                  "display_name": "Your Name"
                },
           "telegram": {
                   "enabled": false,
                   "bot_token": "TelegramBotToken",
                   "chat_id": "TelegramChatID",
                   "user_name": "yourusername"
                 },
           "http": {
                 "enabled": false,
                 "url": "EndpointURL",
                 "method": "POST"
               }
         },
  "mentions": {
           "on_failure": true,
           "on_warning": false
         },
  "notifications": {
             "on_success": true,
             "on_failure": true,
             "on_warning": true
           },
  "logging": {
          "enabled": true,
          "level": "info",
          "max_age_days": 7
        },
  "update": {
          "notify": true,
          "auto_update": false,
          "auto_update_comment": "auto_update is not yet implemented. This will do nothing even if \u0027true\u0027."
        },
  "thumbnail": "https://raw.githubusercontent.com/tigattack/VeeamNotify/main/asset/thumb01.png"
}
 -Logfile C:\VeeamScripts\VeeamNotify\log\2025-05-21_04.31.40-Uptime_Kuma_(Full).log
Process ID: 15008
PSVersion: 5.1.26100.4061
PSEdition: Desktop
PSCompatibleVersions: 1.0, 2.0, 3.0, 4.0, 5.0, 5.1.26100.4061
BuildVersion: 10.0.26100.4061
CLRVersion: 4.0.30319.42000
WSManStackVersion: 3.0
PSRemotingProtocolVersion: 2.3
SerializationVersion: 1.1.0.1
**********************
2025-05-21T09:32:00.737Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-05-21_04.31.40-Uptime_Kuma_(Full).log'.
2025-05-21T09:32:12.238Z [INFO] Discord notification sent successfully.
2025-05-21T09:32:12.678Z [INFO] Slack notification sent successfully.
2025-05-21T09:32:12.791Z [INFO] Stopping transcript logging.
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Windows PowerShell transcript end
End time: 20250521043212
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adding snips of discord and slack failed job
Discord not showing UserID/Username just @!
Slack showing Discord UserID

[tigattack]

Thank you @SageTakeshi. I'll have a look and see if I can find the issue this evening. In the meantime, could you increase the log level to debug in the config and retry please?

[SageTakeshi]

2025-05-21T10:11:37.863Z [INFO] Transcript is being logged to 'C:\VeeamScripts\VeeamNotify\log\2025-05-21_05.11.22-Uptime_Kuma_(Full).log'.
2025-05-21T10:11:49.347Z [INFO] Discord notification sent successfully.
2025-05-21T10:11:49.351Z [DEBUG] No response received from Discord notification.
2025-05-21T10:11:49.671Z [INFO] Slack notification sent successfully.
2025-05-21T10:11:49.671Z [DEBUG] Slack notification response: ok
2025-05-21T10:11:49.675Z [DEBUG] Skipping Teams notification as it is not enabled.
2025-05-21T10:11:49.675Z [DEBUG] Skipping Telegram notification as it is not enabled.
2025-05-21T10:11:49.675Z [DEBUG] Skipping Http notification as it is not enabled.
2025-05-21T10:11:49.687Z [DEBUG] Running log cleanup.
VERBOSE: Performing the operation "Remove expired log files" on target "C:\VeeamScripts\VeeamNotify\log".
2025-05-21T10:11:49.716Z [DEBUG] Searching for log files older than 7 days.
2025-05-21T10:11:49.780Z [DEBUG] Found 0 logs files exceeding retention period.
2025-05-21T10:11:49.791Z [INFO] Stopping transcript logging.

[tigattack]

OK this should now be fixed. I've tested on my side, was able to reproduce, and it seems fine now after the fix in 405f8a6.

Feel free to test yourself and let me know if you have any trouble. Unless I hear of any issues, I'll cut a new release tomorrow.

P.S. I've edited your comments to wrap the logs & config snippets in code blocks for readability.

[tigattack]

This should be fixed in v2.1.0. Let me know if you have any further issues.