Failed to parse chat template: 11:16: error: Expected expression, got: '(' {%- if (not loop.first) or (system_message is not none) %} ---^--

[HalloWelt42]

Error: Failed to parse chat template: 11:16: error: Expected expression, got: '(' {%- if (not loop.first) or (system_message is not none) %} ---^-------

system: Apple M1 Max 32 GB
vesion: v3.6.1
Model: EM German Mistral

{%- set system_message = false %}
{%- if messages[0]['role'] == 'system' %}
    {%- set loop_start = 1 %}
    {%- set system_message = true %}
    {{- messages[0]['content'] }}
{%- else %}
    {%- set loop_start = 0 %}
{%- endif %}
{%- for message in messages %}
    {%- if loop.index0 >= loop_start %}
        {%- if (not loop.first) or (system_message is not none)  %}
            {{- ' ' }}
        {%- endif %}
        {%- if message['role'] == 'user' %}
            {{- 'USER: ' + message['content'] }}
        {%- elif message['role'] == 'assistant' %}
            {{- 'ASSISTANT: ' + message['content'] }}
        {%- else %}
            {{- raise_exception('After the optional system message, conversation roles must be either user or assistant.') }}
        {%- endif %}
    {%- endif %}
{%- endfor %}
{%- if add_generation_prompt %}
    {%- if messages %}
        {{- ' ' }}
    {%- endif %}
    {{- 'ASSISTANT:' }}
{%- endif %}