Fixing Error Is Subst Target 149 (0x95): A Step-by-Step Guide
The Error_Is_Subst_Target issue is primarily a concern for developers, meaning typical users are less likely to run into it. However, should you encounter it, this guide offers practical steps to resolve the problem.
How to Resolve Error_Is_Subst_Target
Modify Your Code
- Launch your code editor.
- Swap out the
_tpm.Createmethod for _tpm.LoadExternal. Your updated code should look like this:pubHandle = _tpm.LoadExternal(TPMT_SENSITIVE::NullObject(), eccTemplate, TPM_HANDLE::FromReservedHandle(TPM_RH::_NULL));
- Make sure to save your changes.
This error is relatively uncommon and surfaces when utilizing an external key with the TPM for verification among other tasks.
By implementing _tpm.LoadExternal, the TPM can utilize a key that has been generated outside its environment to carry out cryptographic functions.
This capability is particularly useful in scenarios where key generation on the TPM is not feasible or when migrating keys from an external system.
The Error_Is_Subst_Target generally appears alongside the following error message: 149 (0x95) indicating an attempt to substitute a drive that is already linked to another directory.
While you may encounter both the error code and the message, reports suggest that the message is more frequently seen.
As noted earlier, this error is fairly niche and mainly affects developers, making it uncommon for general users.
This is just one example of various developer-related errors; we have previously touched on issues like Error_Label_Too_Long and Fatal_Abnormal_Reset_Error in our earlier guides.
Additionally, we explored Error_System_Trace, which is another important topic worth checking out.
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