Ola Luís,

Step 4. doesnt work.

Please advise. URGENT.

The missing method exception will araise in NLog when mixing incompatible versions, e.g. multiple versions of NLog in one project , or mixing major versions (v3 and v4).

NLog is using Semantic Versioning (see https://semver.org/), that means:

• You can upgrade without issues to a new minor version (e.g. 4.1 to 4.6).
• You can use components that are bound to an older minor version, and using in your application a newer minor version. E.g. the component is built on NLog 4.1 and your application is using NLog 4.6
• You can't use a older version then your component, e.g. the component is built on NLog 4.1 and your application is using NLog 4.0
• You can't mix multiple versions of NLog without using the GAC in one solution, e.g. your solution consistent of 2 projects and one is using NLog 4.1 and the other NLog 4.2

To manually and safelly replace the Nlog.dll from other installation follow these instructions.

1- Locate all Nlog.dll files in the C drive by running the command under:

forfiles /p "C:" /m *NLog.dll /s /c "cmd /c echo @PATH"

Evaluate ithe version number of those files and replace the old version of Nlog by the one inside the Docuflow installation folder. Remember to make a backup of the files.

A faster method is described under.

To correct this error automatically (riskier) take these steps:

1 - Exit Revit

2 - Open the command prompt with Administrator Rights

3 - Make a backup of the current Nlog.dll by running the following command:

forfiles /p "C:" /m NLog.dll /s /c "cmd /c copy @PATH @PATH.backup"

4 - Upgrade Nlog.dll by running the following command:

forfiles /p "C:" /m NLog.dll /s /c "cmd /c copy ^0x22C:\Program^ Files^ (x86)\Archigrafix\Docuflow\NLog.dll^0x22 @PATH"

5 - Now you have the latest version of Nlog for all your plugins

6 - Restart Revit