LICENSE: C9555E and R003 Error

Information in this knowledgebase article applies to:

• MDK
• FlexNet floating License

QUESTION

When I build a project I get the following compiler error for each module:

Error: C9555E: License checkout for feature LIC0=TA...-.....-.....
with version 5.0201507 has been denied by Keil back-end. Error code: 1
MISSING DEVICE (R003(0): SECURITY KEY NOT FOUND)

(Alternative licensing error codes could be A9555E, L9555E, or Q9555E)

ANSWER

Using a text editor, open C:\Keil_v5\TOOLS.ini (the default MDK installation path). With a MDK-Pro Flex license, lines should be similar to:

...
TOOL_VARIANT=mdk_pro_flex
...
FLEX_USE=1
...

But TOOL_VARIANT= line is different:

...
TOOL_VARIANT=mdk_pro
...
FLEX_USE=1
...

Close all instances of µVision running from this installation, and change line to one of the following lines:

TOOL_VARIANT=mdk_pro_flex
TOOL_VARIANT=mdk_std_flex
TOOL_VARIANT=mdk_cm_std_flex

depending on edition of MDK. It is possible from editing TOOLS.ini file, earlier, this line was not automatically updated. Save and close file and restart µVision.

If the above settings are correct and you still receive C9555E errors, search all sub-folders under your installation folder for another TOOLS.INI file. If you find one (or more) within those sub-folders, rename or delete them. There should only be one TOOLS.INI file and it should be in your installation folder.

MORE INFORMATION

• Refer to Licensing Errors in the Licensing User's Guide.
• Refer to List of the licensing error and warning messages in the Errors and Warnings Reference Guide.
• LICENSE: Returning to an Evaluation Version of MDK (MDK-Lite)
• LICENSE: Q9932E MISSING DEVICE (R003) or (R20D) Errors
• LICENSE: C9555E and R208 Error After Uninstalling LIC
• LICENSE: R003(0) Security key not found

SEE ALSO

• ARMCC: Error: C9555E with FlexNet Licensing error:-140,148
• LICENSE: Flex License Error -7,10015 and C9555E After Tools Update
• LICENSE: 7 Day MDK Professional Evaluation generates error C9555E

Last Reviewed: Tuesday, January 5, 2021