FlexNet licensing error -5: The provided license does not enable these tools


An Arm tool reports an error containing one or more of the following:

  • Flex error code: -5
  • FlexNet licensing error -5
  • The provided license does not enable these tools.

What causes this error, and how do I solve it?


The following table lists possible causes and resolutions for the issue:

Cause Resolution

A corrupted license file. For example, you have edited part of a license file that should not be edited.

Download a fresh copy of your license file from your account on the Arm Licensing Portal. Then follow the instructions in the KBA for the installation of a node-locked license.

Using a product feature that is an optional add-on, for which you do not have a license. For example, you may have unintentionally downloaded the wrong license.

Review your license to confirm you have downloaded the correct one. If you review and do require a new license you can contact Arm directly or obtain a quote through one of our trusted distributors.

Having a license that is for a different product than the one you want to use.

Contact Arm directly or obtain a quote through one of our trusted distributors.

Installing a different product to the one you have licensed. For example, you have purchased a license to 'Arm Compiler 6.6 for Functional Safety' and installed the original 'Arm Compiler 6.6' release from https://developer.arm.com/tools-and-software/embedded/arm-compiler/downloads/version-6. When you invoke the compiler, it reports:

armclang.exe: error: Failed to check out a license.
The provided license does not enable these tools.
Information about this error is available at: http://ds.arm.com/support/lic56/m5
General licensing information is available at: http://ds.arm.com/support/licensing/
If you need further help, provide this complete
error report to your supplier or license.support@arm.com.
 - ARMLMD_LICENSE_FILE: '<path-to-your-license>'
 - Product location: C:\Program Files\ARMCompiler6.6\sw\mappings
 - Toolchain location: C:\Program Files\ARMCompiler6.6\lib\tt_default\bin
 - Selected tool variant: product
 - Checkout feature: compiler5
 - Feature version: 5.0201611
 - Flex error code: -5
Product: ARM Compiler 6.6 Professional
Component: ARM Compiler 6.6
Tool: armclang [5c77f600]

Your license provides the 'compiler_em66' feature, but this version of Arm Compiler 6.6 is trying to checkout the 'compiler5' feature. The 'compiler_em66' feature is specific to the qualified 'Arm Compiler 6.6 for Functional Safety' branch, meaning releases from 'Arm Compiler 6.6.1' onwards.


Uninstall the incorrect product, and then install the correct product. For example, the qualified 'Arm Compiler 6.6.x' releases are available from  https://developer.arm.com/tools-and-software/embedded/arm-compiler/downloads/arm-compiler-for-functional-safety


The software on your license server (lmgrd and/or armlmd) is too old for your tool.

Install the latest version of the FlexNet license server software by visiting the Download FlexNet Publisher page.